### Hung Joins MoEDAL Collaboration

Thursday, January 7 2021

Prof. P.Q. Hung has joined the MoEDAL experiment (at the Large Hadron Collider) Collaboration.  Prof. Hung's activities with MoEDAL consist of theoretical support to the Collaboration (he is collaborating with two theorists of the Collaboration: John Ellis and Nick Mavromatos).

From the MoEDAL website:

MoEDAL is a pioneering experiment designed to search for highly ionizing avatars of new physics such as magnetic monopoles or massive (pseudo-)stable charged particles. Its groundbreaking physics program defines over 30 scenarios that yield potentially revolutionary insights into such foundational questions as: are there extra dimensions or new symmetries; what is the mechanism for the generation of mass; does magnetic charge exist; what is the nature of dark matter; and, how did the big-bang develop.  MoEDAL's purpose is to meet such far-reaching challenges at the frontier of the field.

For more, see https://moedal.web.cern.ch

### Louca Elected to APS Panel on Public Affairs

Monday, December 7 2020

Despina Louca has been elected to a three-year term on the American Physical Society's Panel on Public Affairs (POPA).

POPA is responsible for making recommendations to the President, the Board, and the Council on public affairs activities of the Society that have been designated by the Board or Council. POPA may initiate new public affairs activities for the Society and may recommend new programs to the Council. POPA shall keep minutes and distribute them to POPA members and to the Council and Board. All POPA reports and APS studies shall be approved by the Council before public release.

### UVa's SPS Chapter Once Again Recognized as Outstanding

Friday, December 4 2020

UVa's SPS chapter has been named a 2019-20 SPS Outstanding Chapter, the 4th time in the last 5 years.   This is the highest honor recognized at the chapter level and is only given to the top 15% of all SPS chapters in the country. The Director of the Society of Physics Students & Sigma Pi Sigma writes: "You and your students have earned this moment of recognition. Your combined efforts supported the department, helped further student development, and strengthened the community."

For more information, see:
https://www.spsnational.org/awards/outstanding-chapter

### Louca Organizing Workshop on Muon Spin Spectroscopy

Thursday, December 3 2020

Prof. Louca is organizing a 2-day workshop in February 1-2, 2021, on Muon Spin Spectroscopy. The workshop will be virtual  given the ongoing COVID-19 pandemic. The Virtual Muon-2021 Workshop will give us an opportunity to listen to muon experts and discuss the possibility for constructing a future Muon facility in the United States at Oak Ridge National Laboratory. Your input on the scientific needs and design specifications will be most valuable. We hope you will join us in February!

For more, see https://www.mrs.org/muon-2021

### Fall 2020 Physics Newsletter

Wednesday, December 2 2020

The current edition of our departmental newsletter features a message from our Chair, Bob Jones, a profile of new faculty member David Nichols, several articles about life and work in our department during the COVID-19 pandemic, and a memorial to the late Professor Art Brill.  You can read the newsletter here:

https://web.phys.virginia.edu/Announcements/Newsletter/

### Joe Poon Awarded the 2020 Jesse W. Beams Award!

Thursday, November 5 2020

Joe Poon has been selected as the recipient of the 2020 Jesse W. Beams Research Award which is given annually by the Southeastern Section of the American Physical Society. The award will be bestowed (virtually) during the 87th Annual Meeting of the SESAPS, November 4 – 5, 2020.

Poon's citation reads:
"In recognition of his  keen physical  insights and significant contributions to a broad range of topics in experimental materials physics.  These include ground breaking work on the first aluminum-based and nonmagnetic iron-based metallic glasses, novel work on alloy quasicrystalline phases and nano-crystalline aluminum alloys, and work in thermo-electric materials."

Here is a description of the Award from the APS (https://engage.aps.org/sesaps/honors/prizes-awards/beams):

"The Jesse W. Beams Research Award, first presented in 1973, was established by the Southeastern Section of the American Physical Society to recognize especially significant or meritorious research in physics, the major portion of which was carried out while the recipient was resident in the ten-state region of the Southeast. The award is named for Jesse Wakefield Beams, a remarkably broad and productive experimental physicist who received his Ph.D. from and spent most of his career at the University of Virginia. ... The Beams Award honors those whose research led to the discovery of new phenomena or states of matter, provided fundamental insights in physics, or involved the development of experimental or theoretical techniques that enabled others to make key advances in physics, and the contributions of the award recipient should have received the critical acclaim of peers nationally and internationally."

### Liuti Appointed to APS Committee on the Status of Women in Physics

Wednesday, October 14 2020

Simonetta Liuti has been appointed to the American Physical Society's Committee on the Status of Women in Physics (CSWP). The CSWP addresses the production, retention, and career development of women physicists and gathers and maintains data on women in physics in support of these objectives. It was founded in 1972 to encourage and address the career development of women physicists. The Committee consists of nine volunteer members appointed by the President of the APS, and sponsors studies, programs, and publications related to women in physics. Details on current programs can be found at Women in Physics.

### Trailblazing Physics Alumna Honored and Highlighted in Histories of Women at UVA

Thursday, October 8 2020

Just three years after the Virginia General Assembly passed a bill that enabled white women to enroll in "professional" and graduate programs at UVA, Lois Ketcham Carwile became the first woman to earn an undergraduate degree from the College of Arts & Sciences, a B.S. in Mathematics (1923). She then became the first woman graduate student in Physics at UVA, earning her Masters (1924) and PhD (1927). The Physics Department celebrates her role in helping to break down barriers to equality in educational opportunities for women, and will be hanging her portrait in the main conference room to honor her remarkable accomplishments.

See:

https://uvamagazine.org/articles/women_experiences_coeducation_uva

### Klich Elected a Fellow of the American Physical Society

Monday, September 28 2020

Congratulations to Israel Klich for his election to Fellowship in the American Physical Society!

The APS Fellowship Program recognizes members who have made exceptional contributions to the physics enterprise in physics research, important applications of physics, leadership in or service to physics, or significant contributions to physics education. Each year, no more than one half of one percent of the Society membership is recognized by their peers for election to the status of Fellow in the American Physical Society.

Israel was nominated by the APS Division of Condensed Matter Physics, and his citation reads:

For deep insights and rigorous results in many areas of condensed-matter theory, including entanglement entropy, the Casimir effect, electron counting and control, and topological order.

### In Memoriam: Prof. Emeritus Art Brill

Sunday, August 23 2020

Arthur S. Brill, Professor Emeritus, Department of Physics, University of Virginia
June 11, 1927 – June 2, 2020

Arthur Sylvan Brill, Professor Emeritus, died of COVID-19 on June 2, 2020 in Newtown Square, PA. Art is survived by his two daughters, Julie and Claire Brill, and four grandchildren. He was predeceased by his wife of sixty years, Patricia Hartig Brill, who died in February, 2018.

A Philadelphia native, Art graduated with highest honors in Physics from UC Berkeley in 1949. In 1956, he earned a PhD in Biophysics from the University of Pennsylvania, where he worked at the Johnson Foundation with Britton Chance and Hendrik den Hartog. There, he developed a fast and sensitive magnetic susceptometer for study of rapid biochemical reactions. His subsequent research focused on using magnetic susceptibility and electron paramagnetic resonance techniques to characterize the role of transition metal ions in proteins during biological oxidation. The main experimental systems that were the subject of his investigations included iron in hemoglobin and myoglobin and copper in blue metalloproteins such as azurin.

Art's career took him to Oxford, Cornell, Yale, and ultimately the University of Virginia, where he was on the faculty for thirty years before becoming an emeritus professor. He stayed involved in research into his 90s. His former postdoc, Bernard Gerstman (Professor of Physics, Florida International University), describes Art as "… a physicist's physicist. He devoted his life to science because he loved it. This was manifested in his research and teaching, and the care that he devoted to both. His abilities in both experimental and theoretical work were remarkable. Usually it is one or the other, but he was impressive with both because he loved science."

His friends and colleagues in the Physics Department will always remember him fondly.

### Vucelja Quoted in ScienceNews

Thursday, August 13 2020

Marija Vucelja was quoted in a ScienceNews article about a Nature paper describing experimental results consistant with the strong Mpemba effect.  [The strong Mpemba effect was predicted by Vucelja, Klich, et al., in a 2019 Physical Review X paper.]

From ScienceNews:

But the simplicity of the study is part of its beauty, says theoretical physicist Marija Vucelja of the University of Virginia in Charlottesville. “It’s one of these very simple setups, and it already is rich enough to show this effect.” That suggests the Mpemba effect could go beyond glass beads or water. “I would imagine that this effect appears quite generically in nature elsewhere, just we haven’t paid attention to it.”

For more, see

https://www.sciencenews.org/article/physics-new-experiment-hot-water-freeze-faster-cold-mpemba-effect

https://www.nature.com/articles/s41586-020-2560-x

and

https://journals.aps.org/prx/abstract/10.1103/PhysRevX.9.021060

### Day Publication Selected by Physical Review C as Milestone Paper

Monday, July 27 2020

2020 is the 50th anniversary of Physical Review C which was spun-off by its parent publication, The Physical Review, in 1970. As part of its anniversary PRC is creating a collection of milestone papers that "remain central to developments in the field of nuclear physics. These papers announce major discoveries or open up new avenues of research."

PRC has selected a paper by Donal Day and his co-authors, M. Strikman, L. Frankfurt and  M. Sargsian, "Evidence for short-range correlations from high Q2 (e,e’) reactions", published in Phys. Rev. C 48, 2451 (1993)  for recognition. This paper presented the first experimental evidence for the existence of short range correlations between nucleons in the nucleus. These short range correlations emerge due to the repulsive core of the NN potential  and generate very large momentum components in the nuclear ground state. Since the publication of this paper in 1993 there has been an explosion of activity, theoretical and experimental, associated with the study of short range correlations and these studies remain a significant part of Jefferson Lab's program.

Read more at: https://journals.aps.org/prc/50th

### Nguyen awarded the Nathan Isgur Postdoctoral Fellowship in Nuclear Experiment

Thursday, July 16 2020

Jefferson Lab has recently announced that Dien Nguyen, a 2018 graduate of the department, has been awarded the Nathan Isgur Postdoctoral Fellowship in Nuclear Experiment. Dien arrived at UVa in 2011 having earned her undergraduate degree from Hue University, Vietnam  in 2010. In 2009 she met her UVa advisor, Research Professor Donal Day, when he took part in a joint UVa-Hue University program (created and organized by Prof. PQ Hung of our department) in which the UVa undergraduate physics curriculum was taught to Hue University undergraduates.

Dien earned her Ph.D. in late 2018 from an experimental program (at Jefferson Lab) designed to probe the details of the nucleon-nucleon interaction at short distances. After graduation from UVa she took a postdoctoral position at MIT. Nguyen, the first woman to receive this award, will return to Jefferson Lab for her 3-year fellowship.

### Bychkov Helps Inspire Pre-Med Student

Monday, June 15 2020

In an article highlighting a recent grad's COVID-19 service, credit was given to Max Bychkov as one of the professors who helped convince her that the pre-med track was right for her.
See https://news.virginia.edu/content/email-amid-chaos-sparked-recent-grads-covid-19-service-effort

### Sackett participates in NASA cold-atom experiment

Friday, June 12 2020

Cass Sackett is a principal investigator and science team member in the NASA Cold Atom Lab project, in which ultra-cold atoms are produced and studied on the International Space Station. A report on the project has just been published in Nature, which describes the first production of a Bose-Einstein condensate in Earth orbit. The paper reports atoms cooled to temperatures below 1 nanoKelvin; Sackett is working on methods to make the atoms colder yet.

For some background, see https://link.springer.com/article/10.1007/s12217-017-9584-3

### UVA SPS Holds Drive to Support Under-Represented Minorities

Sunday, June 7 2020

The UVA Chapter of the Society of Physics Students (SPS) has created a funding drive to encourage donations to several organizations dedicated to assisting under-represented minorities, especially in education.

### Congratulations to this year's Physics Department Award Recipients!

Friday, May 15 2020

Rajveer Nehra is the recipient of the 2020 Outstanding Graduate Research Award in Physics. Raj will soon complete his dissertation entitled “Non-Gaussian States and Measurements in Quantum Information Science” under the supervision of Professor Olivier Pfister.

Drew Wilkers and Andrew Jiao are co-recipients of the 2020 Outstanding Undergraduate Physics Major Award. The Outstanding Undergraduate Physics Major Award is presented each year to the graduating physics major or majors with the best overall academic record in physics throughout their study at the University.  The winner will normally have completed a sequence of physics courses at, or beyond, that required for the Distinguished Majors Program.

Ephraiem Sarabamoun is the recipient of the Stephen Thornton Award in Physics Undergraduate Research. This annual award recognizes the most outstanding research project completed by an undergraduate physics major.  Ephraiem received this award for his published research entitled, “Solitons in the Einstein universe,” which was performed under the guidance of Professor Eugene Kolomeisky.

### Nadjari elected to Phi Beta Kappa

Monday, May 4 2020

Fourth year Physics major Sam Nadjari has been elected to Phi Beta Kappa, the nation's oldest and most prestigious undergraduate honors organization. The Society has pursued its mission of celebrating and advocating excellence in the liberal arts and sciences. Congratulations!
See http://college.as.virginia.edu/awardsandhonors#phi-beta-kappa

### Nehra Wins 2020 Gwathmey Award

Monday, April 27 2020

Congratulations to Rajveer Nehra who has been honored with the 2020 Allan Talbott Gwathmey Memorial Award!

This award comes with a $6,500 prize, and is reserved for the most accomplished graduate students in the physical sciences at the University of Virginia, in recognition of a distinguished scholarly publication. ### Zheng Interviewed in Nature News Friday, April 24 2020 Xiaochao Zheng is interviewed in Nature News article about the highly successful virtual APS April Meeting. ### Vaman Wins All-University Teaching Award Friday, March 27 2020 Congratulations to Diana Vaman for winning a 2020 All-University Teaching Award! This is very well-deserved, and overdue, recognition for her consistent dedication to, and excellence in, classroom teaching. Louis Nelson, Vice Provost for Academic Outreach, and several Physics Department faculty crashed Diana's Zoom class to make the announcement. ### Ghosh Viewpoint featured in Physics Thursday, March 19 2020 Avik Ghosh wrote a Viewpoint, "Spin Control with a Topological Semimetal", for Physics, an American Physical Society site that provides daily on-line news and commentary about papers from the APS journal collection. According to Physics, Viewpoints are "Commentaries on papers written by prominent experts in their field. Written by an active researcher for an audience with a college-level background in physics." For Avik's Viewpoint, see: https://physics.aps.org/articles/v13/38 ### Bloomfield Explains the Crucial Math Behind Social Distancing Monday, March 16 2020 Professor Lou Bloomfield has posted a video explaining how social distancing can help to "flatten the curve" by decreasing the exponential growth of COVID-19. Nice write-ups can be found at https://news.virginia.edu/content/physics-professor-lou-bloomfield-explains-crucial-math-behind-social-distancing and https://www.nbc12.com/2020/03/15/uva-physics-professor-explains-crucial-math-behind-social-distancing/ ### Hung's Contributions Highlighted in Vietnamese Newspaper Thursday, January 23 2020 PQ Hung’s significant contributions to higher education and scientific research in Vietnam were highlighted in the lunar New Year issue of the popular Vietnamese newspaper Thanh Nien. The full article (in Vietnamese) can be found here: https://thanhnien.vn/thoi-su/nguoi-bac-nhip-cau-cho-khoa-hoc-viet-nam-1169566.html A pdf of a Google translation of the article (in English) can be found here: http://www.phys.virginia.edu/Announcements/News/images/People-span-the-bridge-for-Vietnamese-science.pdf ### Vucelja Granted NSF CAREER Award Tuesday, January 7 2020 Congratulations to Marija Vucelja who has been granted an NSF CAREER Award based on her proposal, “Anomalous Thermal Relaxation of Physical Systems.” The Faculty Early Career Development (CAREER) Program offers the NSF’s most prestigious awards in support of the early career-development activities of teacher-scholars who most effectively integrate research and education within the context of the mission of their institution. This is well-deserved recognition of the quality of Marija’s previous work and her compelling plans for future research. For some nice write-ups, see and https://news.virginia.edu/content/faculty-spotlight-major-award-allow-physicist-share-her-passion-science ### Sackett's Intro Physics Course Garners Praise Tuesday, December 17 2019 From UVAToday: On UVA’s Instagram account, we asked students about their favorite fall-semester courses. Submissions poured in with students highlighting engaging classes and how professors’ teaching styles transformed their classroom experience. One highlighted course was PHYS 1710, "Introductory Physics I: Classical Mechanics, Waves, Thermodynamics" taught by Cass Sackett: “Even though the class was hard, it never felt intimidating because he was always reassuring, hosted ample amounts of office hours, and was just super-compassionate,” he said. “My favorite part were honestly the lectures, because he would do great demos and I lived for his small jokes he threw in.” ### UVa's SPS Chapter Recognized Yet Again as Outstanding Thursday, December 5 2019 UVa's SPS chapter has been named a 2018-19 SPS Outstanding Chapter for the 3rd time in the last 4 years. This is the highest honor recognized at the chapter level and is only given to the top 15% of all SPS chapters in the country. The Director of the Society of Physics Students & Sigma Pi Sigma writes: " You and your students have earned this moment of recognition. Your combined efforts supported the department, helped further student development, and strengthened the community." For more information, see: https://www.spsnational.org/awards/outstanding-chapter ### Liuti Awarded 2019 Francis Slack Prize Thursday, December 5 2019 The Southeastern Section of the American Physics Society (SESAPS) has awarded Simonetta Liuti the 2019 Francis Slack prize. This award is in honor of her excellence in service to physics in the Southeast. The citation reads: Dr. Simonetta Liuti has demonstrated excellence in service to the physics community of the Southeast through her contributions at Jefferson Lab, leadership roles within SESAPS, and the promotion of inclusion in physics in the region. Dr. Liuti has made significant contributions to the Jefferson Lab science program via her theoretical work and her prominent involvement with the establishment of the Center for Nuclear Femtogrophy (CNF) at Jefferson Lab. In addition, she has supported SESAPS through her service in the chair line from 2012-2016 and as SESAPS program meeting chair in 2014. Finally, Dr. Liuti has helped further the goals of improving diversity and inclusion in the Southeast physics community through the organization of various workshops and meetings and participation in committees, with particular focus on (although not limited to) the role of women in physics. For more about the history of the award, see: https://www.aps.org/units/sesaps/awards/slack/index.cfm Jefferson Lab has a very nice writeup as well: https://www.jlab.org/news/releases/center-nuclear-femtography-theorist-awarded-sesaps-2019-francis-slack-prize ### Bloomfield's "How Things Work" Online Course Highlighted Tuesday, December 3 2019 From Big Think: A great intro course that looks at physics in the context of everyday objects and processes. How does skating work? Why do things fall? The course uses the cases of ramps, wheels, bumper cars and more to illuminate the physics of life around you. It is taught by the University of Virginia physics professor Louis A. Bloomfield, a noted science educator, lecturer, author, as well as tv host. ### Craigs' Group Work Highlighted in Cavalier Daily Article Thursday, November 21 2019 From The Cavalier Daily: University physicists are beginning to make their mark on two multi-million dollar experiments in particle physics by contributing their research analyses to experiments with the Fermi National Accelerator Complex — Fermilab for short. These experiments, called the Muon-to-electron Conversion Experiment, or Mu2e, and an additional neutrino experiment called NOvA, have the potential to drastically change what is known within the field of particle physics today. While NOvA is underway, Mu2e experiments are scheduled to begin in 2023. ... “There are many experiments at Fermilab, and U.Va. has a long history of contributions to these experiments,” said Craig Group ... “We are still in the construction stage, which will last for another year and a half,” said Craig Dukes ... Through these experiments, the University is also able to offer mass opportunity for undergraduate involvement, such as through fourth-year College student Ben Barton, who has been working on the Mu2e experiment for a little over two and a half years. ### Pfister Discusses the Goals and Benefits of the UVA Physics Graduate Bridge Program Thursday, November 7 2019 In an interview for the Optical Society of America’s “OSA Stories,” Olivier Pfister gives his perspective on the importance of providing graduate school opportunities for bright students from underserved or disadvantaged backgrounds. Watch it here: https://www.osa.org/en-us/media_library/ ### Craigs' Group Mu2e Work Highlighted in UVAToday Tuesday, November 5 2019 Work by the Dukes and Group group on a major experiment at Fermilab to search for neutrino-less muon to electron conversion is highlighted by UVAToday with a photo spread. From UVA Today: University of Virginia physicists are building major components for one of the largest and most complex physics experiments ever conducted in the United States: a$271 million particle physics project at the Department of Energy’s Fermilab near Chicago, called the Muon-to-electron Conversion Experiment, or Mu2e.
...
“There are holes in our understanding of some of the interactions of the fundamental materials that gave rise to our universe,” said Craig Dukes, a professor of physics with UVA’s High Energy Physics Group who is leading the overall design and construction of a particle detector to be used in the experiments. “We are working to fill gaps in theory by conducting direct experimentation at a major lab.”
...
“If we don’t find evidence of conversion, it will kill many theories beyond the Standard Model,” said physics professor Craig Group, who leads the fabrication team that is building the detectors. “If we do, it will be a big discovery, similar to the Higgs.”

For the full story (with lots of photos!), see www.news.virginia.edu/content/uva-neutrino-researchers-close-how-matter-came-be

### Kolomeisky Work Earns Editor's Suggestion

Monday, November 4 2019

What do charge oscillations in conductors and expansion of the physical Universe have in common?  More than meets the eye!  This Editor's Suggestion, https://link.aps.org/doi/10.1103/PhysRevB.100.140301, shows  that a collection of identical charged particles in the presence of a uniform compensating background charge can evolve as if they were part of an expanding or contracting homogeneous and isotropic Universe with the "wrong" sign of interaction: while gravity is attractive, the charges repel each other.  Otherwise, the equations of motion are exactly the cosmological equations of the general theory of relativity.

### Paschke Elected a Fellow of the American Physical Society

Tuesday, September 24 2019

Dear Colleagues,

Please join me in congratulating Kent Paschke on his election to APS Fellowship! Each year, no more than one half of one percent of the Society membership is recognized by their peers for election to the status of Fellow in the American Physical Society.

This is a very well-deserved honor for Kent. He was nominated by the Division of Nuclear Physics and his citation reads:

“For using parity violation in electron scattering to study the structure of the nucleon and nuclei and the physics beyond the standard model, and for achieving unprecedented control over helicity-correlated systematic errors associated with polarized electron beams.”

Best Wishes,
Bob

### Applying Machine Learning to enhance magnetocaloric materials

Monday, June 10 2019

Abstract:

We present a data-driven approach to predict entropy changes (ΔS) in small magnetic fields in single-molecule magnets (SMMs) relevant to their application as magnetocaloric refrigerants. We construct a database of SMMs with a representation scheme incorporating aspects related to dimensionality, structure, local coordination environment, ideal total spin of magnetic ions, ligand type, and linking chemistry. We train machine learning models for predicting the entropy change as a function of structure and chemistry and use the models to arrive at ΔS for hypothetical molecules. We also identify key descriptors that affect the entropy change, thus providing insights into designing tailored SMMs with improved magnetocaloric properties.

This work is highlighted by AIP Scilight:
https://doi.org/10.1063/1.5113601

See paper at:
"Machine learning accelerates design of single-molecule magnets for magnetocaloric applications", Appl. Phys. Lett. 114, 222404 (2019); Ludwig Holleis, B. S. Shivaram, and Prasanna V. Balachandran

https://doi.org/10.1063/1.5094553

### Alumnus Troy's PhysicsBowl Team Places Second in Nation

Wednesday, May 15 2019

One of our alums, Bob Troy who teaches Physics at St Anne’s Belfield in Charlottesville, led the STAB PhysicsBowl team to a 2nd place ranking in the nation and 6th place in the world. See links below to a STAB highlight and a WINA broadcast of Les Sinclair’s interview with Bob Troy.

https://www.stab.org/news/post/~post/physicsbowl-team-places-second-in-nation-sixth-in-world-20190513

https://wina.com/podcasts/st-annes-belfield-school-places-2nd-in-physicsbowl-dr-troy/

For more about PhysicsBowl, see https://www.aapt.org/Programs/PhysicsBowl/

### Han Receives ISO Academic Excellence Award

Tuesday, April 30 2019

Jiwon "Jesse" Han is receiving the International Studies Office Graduating International Students Awards in the category for Academic Excellence.

### Farris, Seymour, and Winn elected to Phi Beta Kappa

Monday, April 29 2019

Fourth year Physics majors Peter Farris, Brian Seymour, and Aaron Winn have been elected to Phi Beta Kappa, the nation's oldest and most prestigious undergraduate honors organization. The Society has pursued its mission of celebrating and advocating excellence in the liberal arts and sciences. Congratulation!

### Duan Wins Gwathmey Award

Saturday, April 20 2019

Congratulations to Chunruo Duan who is the recipient of the 2019 Allan Talbott Gwathmey Memorial Award!  This honor is bestowed upon the most accomplished graduate student in the physical sciences at the University of Virginia in recognition of a distinguished scholarly publication.  The award includes a $7,500 cash prize and is fantastic recognition of Chunruo’s excellent work and the strength of the research efforts in our Department. ### Carson and Wijayaratne Receive Graduate Teaching Awards Wednesday, April 3 2019 Zack Carson and Kapila Wijayaratne who have been recognized with university-wide graduate teaching awards! Zack is the recipient of the Distinguished Graduate Teaching Award for STEM Fields, and Kapila is a recipient of an All-University Graduate Teaching Award. Grace Cummings also received a nomination by the Department. The department is honored by, and grateful for, their outstanding teaching and commitment to their students. ### Yagi Receives 2019 Young Scientist Prize Thursday, March 14 2019 Kent Yagi has been selected as the recipient of the 2019 Young Scientist Prize from the International Commission on General Relativity & Gravitation. Kent's citation and additional information on his prize can be found here: http://iupap.org/commissions/affiliated-commissions/ac2-news/ This follows his recent selection as a 2019 Sloan Fellowship and is excellent additional recognition of his extraordinary work. ### Yagi Named 2019 Sloan Research Fellow Tuesday, February 19 2019 Kent Yagi has been named a 2019 Sloan Research Fellow. From the Alfred P. Sloan Foundation Press Release: “Sloan Research Fellows are the best young scientists working today,” says Adam F. Falk, president of the Alfred P. Sloan Foundation. “Sloan Fellows stand out for their creativity, for their hard work, for the importance of the issues they tackle, and the energy and innovation with which they tackle them. To be a Sloan Fellow is to be in the vanguard of twenty-first century science.” For a nice write-up from Inside A&S , see: http://as.virginia.edu/news/astrophysicist-kent-yagi-awarded-prestigious-fellowship ### Seymour Receives Churchill Scholarship Wednesday, January 16 2019 From UVAToday: Brian Seymour explores the universe, its black holes and pulsars. Now he can go further with the help of a Churchill Scholarship. This fall, Seymour, a fourth-year physics and mathematics major at the University of Virginia, plans to continue his studies at Churchill College at the University of Cambridge in the United Kingdom. Seymour is one of 15 recipients of Churchill Scholarships, valued at roughly$60,000 apiece, which fund American students’ pursuit of a master’s degree at the University of Cambridge. The program was set up at the request of Sir Winston Churchill, the British prime minister during World War II, in order to fulfill his vision of a U.S.-U.K. exchange advancing science and technology on both sides of the Atlantic and helping ensure future prosperity and security.
...
Seymour published a paper with Kent Yagi, an assistant professor in theoretical astrophysics, gravity and cosmology in UVA’s Department of Physics, testing the theories of gravity.

For the rest of the story, see https://news.virginia.edu/content/churchill-scholars-path-universe-runs-through-cambridge

### UVa Physics Majors Play Key Role in Physics Teaching Initiative Serving Rural, Low-Income Communities

Friday, January 4 2019

From UVAToday:

An innovative pilot program launched by UVA alums, now in its second year, has made significant progress in addressing the disparate access to advanced courses in rural Mississippi. The Global Teaching Project provides promising high school students in rural, low-income communities access to the advanced courses their schools otherwise could not offer, due both to a lack of resources and a chronic and worsening shortage of qualified teachers.

...

To help implement the course, Dolan turned to UVA physics department chair Bob Jones, whom Dolan knew from their days together as students on Grounds. Jones, in turn, helped recruit UVA undergraduate physics majors to serve as tutors. “I am from Louisiana, so I know the challenges these areas face,” Jones said. “We have remarkable physics students here at UVA, and I knew that their involvement would benefit these high school students immensely.”

Among the UVa Physics majors who served as tutors were: Nick Anderson, Adrien Bernard, Richard Elwell, Jake Goudeau, Vicki Huang, Megan Kenny, Martine Lokken, Dominic Pinnisi, Steven Stetzler, Mansoor Syed, Sam Umbaugh, and Emma Yeats.

### First Observation of the Parity-Violating Gamma-Ray Asymmetry in Neutron-Proton Capture

Friday, December 14 2018

The weak interaction of quarks between the neutron and proton have been measured for the first time by the NPDGamma experiment at the Spallation Neutron Source in Oak Ridge National Lab. UVa postdoctoral research associate Jason Fry played a leading role in the experiment along with professors Stefan Baeßler and Dinko Počanić and students. This measurement can help us understand the interplay between the strong and weak interactions in hadronic systems.

For further reading, please see the Editor's Suggestion in Physical Review Letters:

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.242002

### UVa Hosts "Femtography" Symposium

Wednesday, December 12 2018

A Symposium on Imaging and Visualization in Science was held at the University of Virginia December 10-11, 2018. This symposium brought together scholars and researchers from Virginia universities and research institutes to discuss recent developments and future opportunities in the imaging and visualization of scientific data.

A major goal of this Symposium was to establish collaborations for future research related to the Virginia Center for Nuclear Femtography. The Commonwealth of Virginia has funded the establishment of a Center for Nuclear Femtography (CNF) to facilitate the application of modern developments in data science to the problem of imaging and visualization of sub-femtometer scale structure of protons, neutrons, and atomic nuclei. The Center will enable collaboration of nuclear scientists from Jefferson Lab and a broad and diverse set of faculty and researchers at Virginia universities, with benefits to both nuclear femtography and other disciplines or areas of research. A near-term goal of this symposium will be to establish collaborations in preparation for a program of summer visitors and exchanges in 2019 that will be the initial phase of the CNF. The 2019 summer program will be funded using the Commonwealth funds for CNF, and will include summer salary for faculty as well as support for postdoctoral researchers and students. Planning the nature and scope of the funded activities were topics that were discussed at the Symposium.

The Symposium's local organizing committee was chaired Prof. Simonetta Liuti, who was also a member of the program committee.

For more information, see: https://pages.shanti.virginia.edu/Femtography/

### Gillies Named Fellow of National Academy of Inventors

Wednesday, December 12 2018

George Gillies, UVa Physics PhD and recently Visiting Research Professor of Physics, has been inducted into Fellowship in the National Academy of Inventors.

From UVAToday:

The academy lauded Gillies, who holds 36 U.S. patents on several medical devices for neurosurgery and cardiology, for demonstrating “a highly prolific spirit of innovation in creating or facilitating outstanding inventions that have made a tangible impact on quality of life, economic development and the welfare of society.”

...

Gillies is a fellow of the American Physical Society, the American Institute of Medical and Biological Engineers and the Institute of Physics. He also is a senior member of the Optical Society of America, a life senior member of the Institute of Electrical and Electronic Engineers and an associate member of the American Association of Neurological Surgeons.

George Gillies at the National Academy of Inventors Fellows Induction Ceremony, Johnson Space Center, Houston, Texas, April 11, 2019

### Lee Co-organized the Inaugural UVA Symposium on Korea

Tuesday, December 4 2018

Seung-Hun Lee co-organized the inaugural UVA Symposium on Korea as a part of his Pavilion Seminar, “Science & Politics.” During the Symposium, which was held in September, three leading experts on Korea -- Professor Paik, Nak-chung from Korea, Professor Philip Zelikow from University of Virginia, and Professor Jae-Jung Suh from Japan -- delivered presentations to shed light on the recent policy changes between the United States and North Korea. The conference was well attended by students, faculty members, and the general public. For the full report, please click here:
http://eastasiacenter.as.virginia.edu

### UVa Quartet At The Center Of Efforts To Gain U.S. Edge

Thursday, November 8 2018

UVAToday has a nice article highlighting UVa's expertise in quantum optical physics and photonics engineering:

A University of Virginia physics professor and three UVA engineering professors are members of three new multi-disciplinary, multi-university teams that are seeking new understanding of quantum science for the development of practical, extremely high-tech tools – including the long-dreamed-of and sought-after quantum computer.

...

Physics professor Olivier Pfister is the principal investigator for one of the teams, with a mission to develop integrated “quantum photonics” on a computer chip, allowing light beams in mini-circuits to be used for quantum computing. The team includes electrical and computer engineering professors Joe Campbell, Andreas Beling, and Xu Yi. They are operating on a $750,000 NSF grant. ### New Clues to the Proton Puzzle Friday, November 2 2018 UVa Physics professor Nilanga Liyanage and his colleagues in the PRad collaboration have made a new measurement of the proton's radius. Other experiments have arrived at two different, incompatible values for this radius. The new value derived from PRad data is consistent with the smaller of these values. Prof. Liyanage described the new work in an invited talk at the 5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan, held in Waikoloa, Hawaii this October. The PRad results are the subject of a story in Science News: https://www.sciencenews.org/article/new-measurement-bolsters-case-slightly-smaller-proton The PRad work was done at Jefferson Lab in Newport News, Virginia. ### Fall 2018 Physics Newsletter Tuesday, October 30 2018 The current edition of our departmental newsletter features a message from our new Chair, Bob Jones, a profile of new faculty member Kent Yagi, profiles of some recent graduates, and a report on the Conference for Undergraduate Women in Physics. You can read the newsletter here: http://www.phys.virginia.edu/Announcements/Newsletter/Vol07Num01.pdf You can find older newsletters here. ### Oscar A. Rondon Aramayo Elected to APS Fellowship Thursday, October 11 2018 Oscar A. Rondon Aramayo, a recently retired Principal Scientist from the UVa Institute of Nuclear and Particle Physics (INPP) has been elected as a 2018 Fellow of the American Physical Society (APS). His citation reads: “For pioneering contributions to the study of quark-gluon correlations in nucleons using inelastic scattering of polarized electrons off transverse polarized proton and deuteron targets to measure the nucleon transverse spin asymmetry A2 and the associated structure function gT and its moments.” Congratulations Oscar! For more information on APS Fellowship see: https://www.aps.org/programs/honors/fellowships/ ### Cox and Poon Highlighted in UVAToday Story on Dozen Top Science Discoveries Monday, October 1 2018 Brad Cox's work on the discovery of the Higgs boson and Joe Poon's work on amorphous "super steel" is celebrated in a UVAToday story on UVA's top twelve notable science discoveries of the last half-century. ### Louca Group Work Highlighted By AIP Thursday, September 20 2018 Despina Louca’s group, and in particular graduate student Aaron Wegner and postdoctoral researcher Junjie Yang, has discovered a way to boost the magnetoresistance in the I-Mn-V class of semiconductors, the highest ever observed in this class, that may make it well-suited as a magnetic electrode in room-temperature spintronics-based devices. This work is highlighted by AIP Scilight: https://aip.scitation.org/doi/10.1063/1.5058147 ### Schauss a Regional Finalist for Blavatnik Award Sunday, September 16 2018 Peter Schauss was selected as a 2018 Blavatnik Awards for Young Scientists Regional Finalist. The Blavatnik Awards for Young Scientists honor exceptional young scientists and engineers by celebrating their extraordinary achievements, recognizing outstanding promise, and accelerating innovation through unrestricted funding. ### Physics in Orbit Friday, September 7 2018 UVa Physics professor Cass Sackett is testing gravity and quantum mechanics in space using the Cold Atom Laboratory (CAL), a device aboard the International Space Station. His work is described in the current edition of UVa Today: "Using lasers and magnets to control atoms in a vacuum chamber, the cooler-sized lab allows Sackett and an international team of colleagues to do in space (remotely, from Earth) what can’t be done on the Blue Planet – that is, conduct sustained experiments into how matter at the most fundamental level operates in “microgravity” conditions under ultra-cold temperatures. That can’t be done so well from Earth because the strong gravity of our planet affects the motions of atoms, the subject of interest in CAL experiments." See the full article here: https://news.virginia.edu/content/cold-and-remote-uva-physicist-takes-cool-quantum-research-space ### Waddy, Walker, and Schult Report on April APS Meeting Tuesday, September 4 2018 A report written by physics undergraduates Morgan Waddy, Matt Walker, and Levi Schult on a trip that they took to the American Physical Society April Meeting last year was published on the national Society of Physics Students website at https://www.spsnational.org/meetings/meeting-notes/weekend-columbus and in Volume XXVII Issue 1 of SPS's Journal of Undergraduate Reports in Physics (JURP) magazine. ### UVA Physics Shines at VT Conference Monday, August 20 2018 On August 13-18 the 20th International Workshop on Neutrinos from Accelerators was held at Virginia Tech. The UVA HEP group took advantage of proximity to UVA and attended in full force, taking 6 poster and giving 4 talks. Prof. Craig Group convened the Muon Physics Working group and presented an Introduction and Summary of this physics in the conference plenaries. Joining him on the trip were two graduate students and four undergraduate students. There were six posters documenting the group’s efforts toward designing, prototyping, and fabricating a cosmic ray veto system for the Mu2e experiment at Fermilab. (see image: Graduate student Steve Boi, and undergraduates Ben Barton, Danny Mills, Ningshun Chen, and Peter Farris – from left to right. Not shown in the photo is Andrew Sutton, a graduate student who presented a poster regarding his work on the NOvA experiment.) ### Chen Wins NIST Postdoctoral Fellowship Tuesday, August 7 2018 Tianran Chen won a NIST Director’s Postdoctoral Fellowship for foreigners that is equivalent to the prestigious NRC postdoctoral fellowship for US citizens. He is moving to NIST late August in 2018 ### Shen wins Lawrence Harrison Kilmon and May Lewis Kilmon Scholarship Friday, July 20 2018 The physics department congratulates Lingnan Shen for being selected as a recipient of the Lawrence Harrison Kilmon and May Lewis Kilmon Scholarship for outstanding academic achievement. It is one of the highest forms of recognition bestowed by the College. For more about the College of Arts & Sciences Deans' Scholarships, see http://college.as.virginia.edu/scholarships ### UVa Physicists Probing Ever Deeper Into The Stuff Of The Universe Wednesday, June 13 2018 UVAToday has a nice article highlighting UVa's contributions to recent results in particle physics: University of Virginia physicists have recently played key roles in new particle physics discoveries. The scientists are involved with large international collaborations using major facilities designed for expanding our knowledge of the most intimate details of how the smallest known pieces of atoms may have given birth to the universe. The research projects are led at UVA by physicist Craig Dukes, working with the U.S. Department of Energy’s Fermi National Laboratory in Illinois; Chris Neu, who works with the Large Hadron Collider in Europe; and Kent Paschke, who works with the DOE’s Thomas Jefferson National Accelerator Facility, or Jefferson Lab, in Newport News. ### Stetzler Awarded DOE Computational Science Graduate Fellowship Wednesday, June 6 2018 Graduating student, Stephen Stetzler, was one of 20 students awarded the DOE Computational Science Graduate Fellowship. The DOE CSGF program provides outstanding benefits and opportunities to students pursuing doctoral degrees in fields that use high-performance computing to solve complex science and engineering problems. Steven will join the Astrophysics Ph.D. program at the University of Washington this fall. You can learn more here: https://www.krellinst.org/csgf/ ### First observation of Higgs boson-top quark interactions at CERN's CMS Experiment Monday, June 4 2018 The discovery of the Higgs boson in 2012 was an important breakthrough in understanding the tiniest building blocks of our universe. Since then, the focus has shifted to measuring the properties of the Higgs boson in order to determine if this new particle is consistent with our current best model of the fundamental world -- or something much more exotic. The most crucial characteristic to be measured is the interaction strength between the Higgs boson and the most massive of the known fundamental particles -- the top quark. Researchers at the CMS Experiment operating at the Large Hadron Collider have recently made the first observation of the interaction between the Higgs boson and the top quark. The effort was led by UVa Physics faculty member Chris Neu, who is an international expert in Higgs boson and top quark physics. He and his students and postdocs have been pursuing this elusive top-Higgs signature since 2011, including recent UVa PhD recipient John Wood ('15), current PhD student Evan Wolfe and postdocs Sarah Boutle, Tutanon Sinthuprasith and Ben Tannenwald. Many undergraduates contributed to background studies as well, including Eric Culbertson ('17), Gage DeZoort ('18), Catherine Jones ('15), Andrew Orvedahl ('18), Rachael Sproule ('17), and Chris Wiens ('17). The article was recently published in Physical Review Letters here [1] and the result is discussed as the PRL Editor's Recommendation [2], as well as in the Fermilab News here [3] and Symmetry Magazine[4]. ### Charged impurities in a conducting sheet can cause a new kind of wake in the current pattern Monday, June 4 2018 The wake behind a boat and the ripples caused by rocks in a stream are both due to the relative motion of a fluid and an obstacle, which gives rise to wave patterns on the surface. A recent Physical Review Letter "Kelvin-Mach wake in a two-dimensional Fermi sea" explores how charged impurities can cause similar effect of uneven currents on a conducting surface such as a graphene sheet. The wake pattern is different from the familiar cases because the relationship between surface wave speed and wavelength is different, with the result that both the Mach "sonic boom" wake (whose opening angle depends on the speed of the moving object) and the Kelvin wake behind a boat (whose opening angle is independent of the speed of the boat) can occur as limiting cases. The diagram shows an example of a wake pattern (the lines represent wave crests, the blue and green shaded regions are Kelvin- and Mach-like, respectively). The understanding of this effect could be important in the engineering of electronic devices in cases where the scattering of electrons is small, so that their flow is described by a kind of hydrodynamics. "Kelvin-Mach Wake in a Two-Dimensional Fermi Sea", Eugene B. Kolomeisky and Joseph P. Straley, Phys. Rev. Lett. 120, 226801 – Published 31 May 2018 See paper at https://doi.org/10.1103/PhysRevLett.120.226801 ### Seymour Receives Astronaut Scholarship Wednesday, May 30 2018 From UVAToday: Brian C. Seymour of Ruckersville, a rising fourth-year student at the University of Virginia double-majoring in physics and mathematics, has received an Astronaut Scholarship, which is designed to encourage students in the sciences. Seymour’s research focus stems from his fascination with gravity. “Gravity is the enigma of modern theoretical physics, so I wanted to work on testing it,” he said. “General relativity is a theory of gravity that generalizes Newtonian gravity, and it describes gravity as a curvature of spacetime. So far, general relativity has passed all tests with flying colors, but there are many reasons to consider theories beyond general relativity. I have been working on testing general relativity with compact astrophysical binaries.” ### Results from Jefferson Lab's Qweak experiment published in Nature Thursday, May 10 2018 The weak charge of the proton has been measured to high precision, for the first time, by the Q-weak experiment at the Department of Energy’s Thomas Jefferson National Accelerator Facility (Jefferson Lab). UVa Associate Professor of Physics Kent Paschke played a leading role in this experiment. Another faculty member, Gordon Cates, was also involved. Xiaochao Zheng wrote an accompanying News and Views article. [She donated the$130 honorarium to SPS.]

For further reading please see:

https://www.nature.com/articles/s41586-018-0096-0

and the News and Views article:

https://www.nature.com/articles/d41586-018-05037-9

### Bridget Andersen Featured in UVaToday Series on Class of 2018

Thursday, May 3 2018

Astronomy/Physics major Bridget Andersen is featured in an article in this week's edition of UVaToday.

From UVaToday:

“Even though Bridget chose to specialize in astronomy for her research, she also took the toughest physics courses and excelled in them, not only with regard to scores, but first and foremost in terms of mastering difficult concepts such as the foundations of quantum physics,” physics professor Olivier Pfister said. “She is the student who consistently asks, and answers, the toughest questions and relishes the most challenging assignments.”

For more, see:

https://news.virginia.edu/content/class-2018-stargazing-student-stars-astrophysics-heading-grad-school

### Sutton Receives DOE SCGSR Fellowship

Thursday, April 26 2018

UVa physics graduate student, Andrew Sutton, was one of only four students in the country who received the prestigious DOE Office of Science Graduate Student Research fellowships to conduct their research at Fermilab.

The program goal is to prepare graduate students for science careers important to the DOE Office of Science mission.  The program provides graduate thesis research opportunities at DOE laboratories.  Andrew will work closely with his advisor, Prof. Craig Group, and post-doctoral researcher Michael Baird along with Fermilab scientists to make important contributions to the NOvA neutrino experiment.   The award includes a generous one-year living stipend and funds for relocation to Fermilab.

### Tianran Chen Wins 2018 Allen Talbott Gwathmey Memorial Award

Thursday, April 19 2018

Tianran Chen is a recipient of the 2018 Allan Talbott Gwathmey Memorial Award.  The Gwathmey award is an honor reserved for the most accomplished graduate students in the physical sciences at the University of Virginia in recognition of a distinguished scholarly publication.

The award acknowledges his recent work, “Origin of Long Lifetime of Band-Edge Charge Carriers in Organic-Inorganic Lead Iodide Perovskites”, published in Proceedings of National Academy of Sciences 114, 7519-7524 (2017).

### Li Receives Goldwater Scholarship

Tuesday, April 10 2018

From UVAToday:

University of Virginia students Chris Li and Sebastian Haney have received scholarships from the Barry M. Goldwater Scholarship and Excellence in Education Foundation for 2018. Two other UVA students received honorable mentions.

Li, of Las Vegas, a third-year physics and mathematics double-major, is currently investigating gravity as an emergent phenomenon of quantum field theory under certain special conditions.

“Gravity, at least as envisioned by Einstein, is incompatible with quantum physics,” Li said. “This is a major issue in theoretical physics. The search for a resolution has attracted many physicists across generations. Such resolution could have an enormous impact on our understanding of the universe from subatomic to cosmological scale.”

### Origin of vertical orientation in two-dimensional metal halide perovskites and its effect on photovoltaic performance

Saturday, April 7 2018

Thin films based on two-dimensional metal halide perovskites have achieved exceptional performance and stability in numerous optoelectronic device applications. Simple solution processing of the 2D perovskite provides opportunities for manufacturing devices at drastically lower cost compared to current commercial technologies. A key to high device performance is to align the 2D perovskite layers, during the solution processing, vertical to the electrodes to achieve efficient charge transport. However, it is yet to be understood how the counter-intuitive vertical orientations of 2D perovskite layers on substrates can be obtained.
Recently, the team of University of Virginia made of Chemical Engineer Josh Choi’s group and Physicist Seung-Hun Lee’s group reports a formation mechanism of such vertically orientated 2D perovskite in which the nucleation and growth arise from the liquid–air interface. As a consequence, choice of substrates can be liberal from polymers to metal oxides depending on targeted application. They also demonstrate control over the degree of preferential orientation of the 2D perovskite layers and its drastic impact on device performance.
Origin of vertical orientation in two-dimensional metal halide perovskites and its effect on photovoltaic performance, Alexander Z. Chen, Michelle Shiu, Jennifer H. Ma, Matthew R. Alpert, Depei Zhang, Benjamin J. Foley, Detlef-M. Smilgies, Seung-Hun Lee & Joshua J. Choi, Nature Communication 9, 1336 (2018).
Link: https://www.nature.com/articles/s41467-018-03757-0

### Gupta, Lee, McMullen elected to Phi Beta Kappa

Wednesday, April 4 2018

Fourth year Physics majors Arvind Gupta, Kevin Lee, and Timothy McMullen have been elected to Phi Beta Kappa. Congratulations!

### Ghosh, Poon, et al. Receive DARPA Funding To Shrink Computing Memory

Monday, April 2 2018

From UVAToday:

In a case of “smaller is better,” a team of University of Virginia researchers has received a $3.4 million grant from Defense Advanced Research Projects Agency with the goal to shrink computing memory bits to a nanoscale. Using tiny magnetic structures called ”skyrmions,” researchers hope to reduce the amount of energy needed to move memory bits and expand memory capabilities in the same amount of space. The UVA team consists of lead principal investigator Avik Ghosh, a professor in the Department of Electrical and Computer Engineering and Department of Physics; Joseph Poon, William Barton Rogers Professor of Physics and chair of that department; Prasanna Balachandran, assistant professor in the Department of Materials Science and Engineering; and Mircea Stan, a professor in the Department of Electrical and Computer Engineering. Other co-principal investigators include Professor Geoffrey Beach at the Massachusetts Institute of Technology and Professor Andrew Kent in New York University. The program kicked off earlier this month. For the full story, see https://news.virginia.edu/content/researchers-received-darpa-funding-shrink-computing-memory ### UVa Hosts Conference for Undergraduate Women in Physics Thursday, March 29 2018 ### The following article describes the APS Conference for Undergraduate Women in Physics (CUWiP), hosted by UVa in January 2018. ## Female Physics Students Unite at UVa By Martine Lokken Saturday morning group photo of Conference attendees taken in the atrium of Bavaro Hall. (Photo by Bryan Wright) The University of Virginia grounds buzzed with excitement over the Martin Luther King Jr. weekend as hundreds of female physics enthusiasts came together with shared goals in mind: to foster camaraderie, find inspiration in each other, and look towards the future of the field. This year was UVa’s turn to host one of the annual Conferences for Undergraduate Women in Physics (CUWiP). Sponsored by the American Physical Society, UVa’s CUWiP was one of twelve sister conferences held simultaneously across the United States. The conferences aim to cultivate community among female undergraduate physics majors, who earn only ~19% of conferred degrees, a number that has been in decline over the past decade (APS Education Statistics, 2015). The conference was organized by UVa physics professor Simonetta Liuti, as well as a large team of faculty, staff, and students across multiple departments. A special pre-event, SPIN-UPx, was also held at UVa to promote diversity in Science, Technology, Engineering and Mathematics (STEM). This event, led by Rachel Spraker (Compliance Director for Equality and Affirmative Action at UVa), supported the inclusion of members of racial, ethnic, gender and sexual minorities; students with physical, mental, and learning disabilities; first-generation college students and those from low income backgrounds. One hundred thirty-nine undergraduates from forty-four colleges and universities across Virginia, West Virginia, North Carolina, Kentucky, Tennessee, Maryland, New Jersey, and even Nova Scotia came to discuss future careers, talk about hot research topics, and forge new connections. Female graduate students, professors, researchers, lab directors and other professionals were there to give their personal advice on how to succeed in physics. Students attending the National Radio Astronomy Observatory headquarters tour. (photo by Nan Janney) One highlight of the conference was a morning of laboratory tours. Included were the UVa physics department (Condensed Matter Physics: Prof. Despina Louca, Nuclear Physics: graduate student Chris Jantzi, High Energy Physics: Prof. Craig Dukes, Atomic Physics: Prof. Tom Gallagher), a discussion of Nuclear Theory by graduate student Abha Rajan, as well as tours of the Materials Science Department, the National Radio Astronomy Observatory headquarters, and UVA’s medical facilities. For example, Dr. Krishni Wijesooriya led a tour of the Emily Couric Cancer Center while teaching students about the physics behind radiation oncology. The group got a sneak-peek at life in the center by meeting staff, examining the technology, and even watching as a patient was imaged by a CT scanner. Dr. Wijesooriya talked about some of her own innovations in the field of medical physics, and encouraged the visitors to “think big”: after all, she noted, Marie Curie won not just one, but two Nobel Prizes for her work in physics and chemistry. Clearly, the undergraduates were already thinking big, which they proved at Saturday’s poster session. Thirty-two research posters were presented, detailing projects in particle physics, biological physics, astrophysics and condensed matter. During the session, not only were the presenters able to improve their research communication skills, but the other attendees also had the chance to learn how to get involved in undergraduate research. The first-place poster prize went to Kayla Callaway of Rowan University for her research entitled “Tunable CdS quantum dots synthesized by reverse micelles.” Saturday evening poster session. (Photo by Bryan Wright) Other memorable components of the conference included talks by established professionals in physics and astronomy fields. Keynote speakers Prof. Elizabeth H. Simmons (Executive Vice Chancellor, UC San Diego) and Prof. Shohini Ghose (Wilfrid Laurier University) shared their personal journeys and paid homage to great, yet under-recognized, female physicists of the past. Prof. Ghose told the story of Cecilia Payne-Gaposhkin, who discovered that the Sun was primarily composed of hydrogen and helium but whose conclusion was not believed until her male colleagues confirmed the result. Many speakers at the conference shared their own stories of how they overcame challenges. Dr. Kelsey Johnson, who spoke on Saturday, is the picture of success for an astronomer. To name a few of her accomplishments, she has made notable discoveries in the field of star formation, is on the advisory committee for the upcoming James Webb Space Telescope, and teaches highly popular astronomy classes at UVa. At CUWiP, however, she revealed that her path was not easy. Professor Johnson grew up very poor – the “not knowing if there will be heat or electricity or a working toilet kind of poor,” she explained. In poverty, and with a single mother, studying astrophysics was not the most obvious of career choices. However, she shared that the hardships in her life made her determined to figure out her place in the universe. Her story clearly struck a chord with the audience. “I loved how she emphasized that through struggle comes great strength, and rather than allowing setbacks or struggles to define you, you can use them to motivate you to do better and be better,” said first year UVa physics major Sydney Macon. Talk given by Gail Dodge, Dean of the College of Sciences at Old Dominion University and researcher at the Thomas Jefferson National Accelerator Facility. (Photo by Bryan Wright) On Sunday, CUWiP attendees had a chance to discuss their own successes, setbacks and aspirations in small ‘breakout sessions.’ These included discussions about coping with imposter syndrome, maintaining a work-life balance, finding research opportunities, and many more. The sessions found a balance between acknowledging the issues facing women in physics fields and developing strategies to achieve career goals, overcome set-backs, maintain a positive attitude and move past difficulties during the course of one’s career. Stephanie Moore, of UVa's Curry School of Education, leading a session on Resilience and Work-Life Balance. (Photo by Bryan Wright) Overwhelmingly positive feedback from both attendees and invited speakers suggests that the conference was a huge success, inspiring and supporting young female physicists across the mid-Atlantic region. Undergraduate students left CUWiP having forged new connections, gained advice, and drawn inspiration from the personal stories of many successful women. Megan Kenny, a second year astrophysics major at UVa, spoke highly of the experience: “I found the conference really empowering in that the talks, discussions, and activities collectively explored the advantages of being a woman in the field as much as the difficulties, showed the spectrum of paths that one can take after a physics degree, and gave us attendees confidence in driving our own careers and making whatever decisions feel right.” After the success of the conference, the CUWiP organizing committee will continue to work towards increasing diversity in physics. If you have questions, comments, or ideas, please e-mail cuwip@Virginia.edu. Here’s to a future of equal opportunities, mutual support, and innovation in physics. ### Acknowledgements: CUWiP with SPIN-UPx was organized by a multi-disciplinary group of faculty and students at UVa spanning the departments of Physics, Astronomy, Materials Science and Engineering, and the National Radio Astronomy Laboratory. CUWiP sponsors include the National Science Foundation, the Department of Energy, UVa’s Department of Physics, the Society for Physics Students, Sigma Xi, Jefferson Science Associates, LLC, Old Dominion University Department of Physics, the Department of Materials Science and Engineering, the Office of Diversity and Engagement in the School of Engineering and Applied Science, UVa’s Astronomy Department, the National Radio Astronomy Laboratory, UVa’s Parents’ Fund, and New Sky Capital (Dr. Stefania Perrucci). We thank all of our academic and industrial speakers who volunteered time to speak at SPIN UPx and CUWiP. More information about the event, such as speakers, sponsors, and a photo gallery, can be found at http://cuwip.phys.virginia.edu. Martine Lokken is a 4th-year Astronomy-Physics major at the University of Virginia. She intends to start graduate studies next year in the field of theoretical cosmology. ### 2018 Mitchell Summer Research Scholarships Awarded Tuesday, March 27 2018 Every year, the Physics Department awards six to ten Mitchell Summer Fellowships to rising third or fourth year declared physics majors. The awards are currently$5,000, for summer research with a faculty member of the department.  For summer 2018, the following awards have been made:

Nick Anderson to work with Prof. Hirosky on new more sensitive light detector chips to be used at CERN.

Ben Barton to work with Prof. Group on a cosmic ray detector to monitor an experiment at Fermilab.

Colin Crovella to work with Prof. Baessler, at the Laue-Langevin Institute in Grenoble, France, on ultracold neutron detection.

Xiaochuan Ding to work with Prof. Pocanic on neutron beta decay, an experiment at Oak Ridge Lab.

Jiwan (Jesse) Han to work with Prof. Cox at CERN, upgrading one of the major detectors.

Chris Li to work with Prof. Vaman, on understanding the fundamentals of gravity, a major unsolved problem in physics.

John (Charlie) Maier to work with Prof. Teo on the properties of bilayer graphene, a fascinating new material.

Ruhi Pavartam to work with Prof. Neu, upgrading a major detector at CERN.

Ephraiem Sarabamoun to work with Prof. Shivaram search for room temperature metamagnets.

Brian Seymour to work with Prof. Yagi, probing fundamentals of general relativity, analyzing binary pulsar observations.

### UVa's SPS Chapter Recognized Again as Outstanding

Monday, March 12 2018

UVa's SPS chapter has been named an SPS Outstanding Chapter for the second year in a row.   This honor is only given to the top 10% of all SPS chapters in the country.

The Director of the Society of Physics Students & Sigma Pi Sigma writes: "You and your chapter officers have earned this moment in the spotlight to recognize your efforts to build community and transform students into successful professionals."

For more information, see:
https://www.spsnational.org/awards/outstanding-chapter/recipients/2017

### Bloomfield Develops Jelly Earplug

Monday, February 12 2018

From NBC29:

Trademarked as “MemorySil,” the shape-memory material is first being marketed as an earplug called EarJellies, referencing the jelly-like texture of the rubber.

“It is a very soft material that can barely stand up under its own weight, but it remembers shapes and fights to retain them, making it ideal for conforming to the shape of an individual’s ear canal,” said Lou Bloomfield, the UVA physics professor who created the material after a range of experiments over years. “It forms a very good seal for blocking loud sounds.”

### Strain engineering of a topological semimetal

Sunday, December 24 2017

Researchers at UVa found a way through strain engineering to manipulate the electronic band structure, and induce large, reversible response of the magnetoresistive properties under high magnetic fields in topological Weyl semimetal MoTe2.  Coupled with this response is a phase change that can also be reversibly switched under tensile strain.  The work done in collaboration with the Condensed Matter experimental group of Despina Louca and the theoretical group of Gia-wei Chern showed for the first time that the response is due to a changing atomic orbital texture under strain.  The results from this work recently appeared in Science Advances.

http://advances.sciencemag.org/content/3/12/eaao4949

### Seventh Annual Sigma Pi Sigma Research Symposium

Tuesday, December 19 2017

The Seventh Annual Sigma Pi Sigma Research Symposium was held on November 3rd, 2017 in the Rotunda's Lower West Oval Room. Professors Craig Group, Marija Vucelja, Shane Davis, and Kent Paschke were invited to judge nine presentations delivered by students in the Physics and Astronomy Departments. Students presented research topics ranging from noise reduction in LIGO's mirrors to simulations of magnetic skyrmions. Cash prizes were awarded to the following presentations:

Talks:
1st Place: A Comparison of Galaxy Bulge+Disk Decomposition between Pan-STARRS and SDSS by Martine Lokken
2nd Place: Chiral Modes in Bilayer Graphene by Matt Walker and Andrew Jiao
3rd Place: Micromagnetic Simulations of Magnetic Skyrmions by Ben Hillman

Posters:
1st Place: Studies to Understand and Optimize the Performance of Scintillation Counters for the Mu2e Cosmic Ray Veto System by Peter Farris and Pedrom Zadeh
2nd Place: Black Hole Search at the Large Hadron Collider by Gage DeZoort and Jesse Han
3rd Place: Simulating Particle Collisions at the LHC by Andrew Orvedahl

### Craigs' Group NOvA Homework

Friday, December 8 2017

From UVA Today:

University of Virginia physicists are playing a key role in one of the world’s largest physics experiments, a nearly $300 million project called “NOvA” that is designed to study fundamental particles. The aim is to help tweak out the details of how the universe came to its present state from particle interactions that occurred in the first seconds after the Big Bang nearly 14 billion years ago. ... “There are holes in our understanding of the universe, and as scientists, we won’t sleep well until those holes are patched,” said Craig Group, a project scientist with NOvA and UVA physics professor. “It sometimes takes big experiments to answer fundamental questions.” ... The roughly 200 scientists around the country who are part of NOvA must actively monitor the experiments in real time. They do this in shifts, either at Fermilab or remotely, if so equipped. Last summer, Group and his colleagues set up a$10,000 monitoring and control station in the High-Energy Physics Lab on Grounds to make this easier. Previously they had to fly to Illinois and run their shifts on-site, but now they can do it from the comfort of home – their lab.

Three to four times per year, Group and colleague Craig Dukes, another project scientist with NOvA, and a corps of postdoctoral fellows and graduate students take turns over a four-day period pulling three eight-hour shifts per day. With the station in place, they now can monitor experiments at any time, even when another institution is on guard duty.

For the full story, see www.news.virginia.edu/content/uva-neutrino-researchers-close-how-matter-came-be

### Lee Group's Work on Solar Cells Highlighted by DOE

Tuesday, November 14 2017

Twisting Molecule Wrings More Power from Solar Cells

Inside a solar cell, sunlight excites electrons. But these electrons often don’t last long enough to go on to power cell phones or warm homes. In a promising new type of solar cell, the solar-excited electrons have better odds going on to work. Why? Seung-Hun Lee’s group (Tianran Chen and Depei Zhang) and their collaborators revealed the dominant force behind the higher efficiency of these promising hybrid organic-inorganic perovskite solar cells. They found that positively charged molecules rotate in the cell. In moving, the molecules screen the excited charge carriers — electrons and holes (missing electrons) — from annihilation. Discovering this new microscopic mechanism offers a rational path to design novel materials for higher solar cell efficiency.

This work was published in PNAS this year and was selected as a research highlight by the U.S. Department of Energy Office of Science: https://science.energy.gov/bes/highlights/2017/bes-2017-11-c/

### Alumnus Caplan Receives APS Dissertation Award

Monday, October 30 2017

UVa Physics Alumnus Matthew Caplan (B.S. 2013), now a Canadian Institute for Theoretical Astrophysics Postdoctoral Fellow at McGill University, has received the 2018 Dissertation Award in Nuclear Physics from the American Physical Society.

Citation:
"for a pioneering study of dense nuclear matter in compact stars that makes surprising connections across disciplines including nuclear physics and biophysics."

### Alumna Manning Receives Maria Goeppert Mayer Award

Thursday, October 26 2017

UVa Physics Alumna M. Lisa Manning (B.S. 2002), now Associate Professor of Physics at the Syracuse University, has received the 2018 Maria Goeppert Mayer Award by the American Physical Society.

Citation:
"for her use of computational and analytical tools to develop microscopic understanding of flow in disordered materials, ranging from metallic glasses to biological tissues."

### Stetzler Wins Major Scholarship

Monday, October 23 2017

From UVA Today:

Steven Stetzler asks big questions, such as “What is the universe made of?” and “Why is the universe the way it is?”

Stetzler, of Kutztown, Pennsylvania, a fourth-year physics and computer science major at the University of Virginia, has received a $10,000 scholarship from the Astronaut Scholarship Foundation to help him in his questioning. ### Cass gets Ultra-Cool Monday, October 23 2017 From UVA Today: It is said that what goes up must come down. Thank gravity for that. But sometimes gravitational effects affect matter on Earth in ways that physicists would rather do without. So early next year NASA is launching to the International Space Station a novel “Cold Atom Laboratory” that will allow physicists to conduct sustained experiments into the states of matter, under nearly weightless conditions, at ultra-cold temperatures, that would be nearly impossible to conduct on Earth. University of Virginia physicist Cass Sackett is part of the mission. “We will make use of the near-weightless conditions of orbit to help us suspend atoms, slow them down, and thereby cool down, the motions of atoms,” he said. “These cold physics experiments should provide a much greater understanding of quantum mechanics and gravity, and provide some practical uses as well.” For full story, see www.news.virginia.edu/content/uva-physics-go-space-and-get-ultra-cold ### Probing Matter with Attosecond Photo-Electron Wavepackets Monday, October 2 2017 Electronic processes and electron-driven reactions in atoms, molecules and condensed systems can proceed very rapidly, with relevant time-scales in the attosecond (1 attosecond=10-18 s) regime. When activated by the photoabsorption of extreme-ultra-violet attosecond laser pulses, the electron dynamics can be probed in real time by employing the coherent optical field of an additional infrared laser to mark time during the system’s evolution. While temporal resolutions on the order of 10 attoseconds have been demonstrated in such measurements, the physical insight which can be directly gleaned from these experiments has been limited, relying on extensive numerical simulations for interpretation. Now, a team from the University of Virginia and the Ohio State University has demonstrated a new technique that utilizes quantum interference in attosecond photoionization to directly reveal explicit information on an electron’s local environment, captured within a brief time interval (~ 1 femtosecond) following its emission. Initially applied to investigate the effects of electron correlation within atoms, the method should be applicable to molecules, and perhaps condensed systems as well. D. Kiesewetter1 , R. R. Jones2, A. Camper1, S. B. Schoun1, P. Agostini1, and L. F. DiMauro1, “Probing Electronic Binding Potentials with Attosecond Photoelectron Wavepackets,” Nature Physics, doi: 10.1038/nphys4279 (October 2017). 1Department of Physics, The Ohio State University, Columbus, OH 2Department of Physics, University of Virginia, Charlottesville, VA See full paper at http://dx.doi.org/10.1038/nphys4279 For a nice UVAToday write-up, see https://www.news.virginia.edu/content/physicists-take-snapshots-electrons-move ### Fall 2017 Physics Newsletter Wednesday, September 20 2017 The current edition of our departmental newsletter features profiles of three new faculty members (Jeffrey Teo, Gia-Wei Chern, and Marija Vucelja), and a tale spanning three generations of the Cabrera family. You can read the newsletter here: http://www.phys.virginia.edu/Announcements/Newsletter/Vol06Num01.pdf ### Han wins Ig Nobel Prize Sunday, September 17 2017 Physics Major Jiwon "Jesse" Han has won a 2017 Ig Nobel Prize for his paper on "A Study on the Coffee Spilling Phenomena in the Low Impulse Regime": www.improbable.com/ig/winners/#ig2017 Jesse's (short) Ig Nobel lecture can be seen at 52'35" on: m.youtube.com/watch?v=yNwLfRpNHhI ### Origin of Long Lifetime of Charge Carriers in Solar Cell Perovskites Wednesday, July 5 2017 When sunlight shines on a semiconducting material, electrons in the material can be excited from their original states to higher energy states, forming photo-excited electrons and leaving empty states (called holes) in the original states. Usually the excited electrons and holes (charge carriers) quickly meet and annihilate each other. However if they survive long enough to be collected in an external circuit, then they can produce electricity: solar energy is transformed to electricity. Hybrid organic-inorganic perovskites (HOIPs) are among the most promising materials for next generation solar cells that combine high efficiency and low-cost. It has been shown that long lifetime of the charge carriers is what makes hybrid organic-inorganic perovskites high performance photovoltaic materials. The microscopic mechanism for the long lifetime however has been controversial. This work shows, by using a combination of optoelectronic property measurements and neutron scattering techniques, that the screening of charge carriers by rotation of organic cation molecules is a major contribution to the prolonged carrier lifetime. Thus, searching for hybrid organic-inorganic perovskites with high rotational entropy over a wide range of temperature may be a key to achieve superior solar cell performance. Tianran Chen, Wei-Liang Chen, Benjamin J. Foley, Jooseop Lee, Jacob Ruff, J. Y. Peter Ko, Craig M. Brown, Leland W. Harriger, Depei Zhang, Changwon Park, Mina Yoon, Yu-Ming Chang, Joshua J. Choi, and Seung-Hun Lee, Proceedings of the National Academy of Sciences, doi: 10.1073/pnas.1704421114 (2017). For a Powerpoint slide with graphics, see SHLee_Highlight2017-PNAS.ppt For the Proceedings of the National Academy of Sciences paper, see www.pnas.org/content/early/2017/06/26/1704421114.full ### 2017-18 Deaver Scholarship Application Form for Physics Majors Thursday, May 18 2017 The Deaver Scholarships were established to honor Bascom S. Deaver, a retired physics department professor, and are awarded to students who have declared or are intending to pursue an undergraduate major in physics. They are competitive and awarded annually by the department to rising third or fourth year students. Winners are selected based on academic performance and demonstrated interest in pursuing the study of physics. The Deaver scholarships are competitive. They are awarded annually by the Physics Department as academic year support for declared physics majors in their 3rd and 4th years. You are eligible if you are a declared physics major currently completing your 2nd or 3rd year. The selection process will be based on what you write on this application and a current academic SIS transcript. Typical award amounts will be in the range$5,000 to $10,000 as resources allow. We expect to award several scholarships for the next academic year. The application deadline this year is July 1. You can find an application form at http://www.phys.virginia.edu/Announcements/DeaverFund/ We prefer that you fill out this application electronically and submit it to Beth Guyton (eko5r@virginia.edu ) electronically. ### A novel quantum phase transition and super-entangled states Thursday, May 18 2017 One of the main quests of many-body physics and quantum information is to understand quantum phases and in particular the entanglement present in them. In this work, Zhao Zhang and Amr Ahmadain, working with Prof. Klich, have uncovered a novel quantum phase transition in spin chains where entanglement entropy jumps into a critical phase exhibiting an extraordinary amount of entanglement. This discovery pushes the boundaries of the possible range of nonlocal quantum correlations and opens a door to fundamental and practical questions about the interplay of entanglement and locality in many-body systems. The research has been published in PNAS: http://www.pnas.org/content/early/2017/04/26/1702029114.full?sid=eb9972f8-9dd5-4215-8a29-990628b164a5 ### Chen wins Best Poster Award at MRS Spring Meeting Thursday, May 18 2017 Tianran Chen received the Symposium ES1 Best Poster Presentation Award at the 2017 MRS Spring Meeting. The award was based upon technical content, graphica excellence, and presentation quality. For more see https://www.mrs.org/spring2017/spring-2017-symposia/?code=ES1 ### Wright wins IT Excellence Award Thursday, May 11 2017 Bryan Wright is one of three 2017 IT Excellence Award winners. This well earned award recognizes individuals who demonstrate outstanding service in support of the Information Technology needs of their organization. For more, see http://www.its.virginia.edu/newsletters/employees/lspmay2017.html#awards and http://www.its.virginia.edu/dcs/lsp/excellence.html ### Observing the Universe with Physics: National Physics Day 2017 Friday, May 5 2017 An article in UVaToday describes this year's annual National Physics Day Show, which was held on April 26. From the article: “It’s a demo show designed to educate and entertain kids and the grownups who bring them,” said [Prof. Cass] Sackett, who hosts this year’s event. “We carry the torch, year to year, in an effort to foster enthusiasm and excitement for our science by making it accessible. We pass that torch to each generation. Developing scientific literacy is good for society.” View the article here: https://www.news.virginia.edu/content/uva-invents-national-physics-day-anew-each-year and view video from this and previous years here: http://www.phys.virginia.edu/Announcements/PhysicsDay/videos/ ### Katya Gilbo Featured in UVaToday Monday, April 24 2017 Physics major Katya Gilbo is featured in an article in this week's edition of UVaToday. Katya says “nature is stuffed to the brim with dramatic processes, and we humans aren’t bystanders.” https://www.news.virginia.edu/content/class-2017-physics-allowed-her-peer-under-hood-natures-processes?utm_source=DailyReport&utm_medium=email&utm_campaign=news ### Andersen wins Goldwater Scholarship; Gupta gets Honorable Mention Tuesday, April 4 2017 Bridget Andersen has won a 2017 Goldwater Scholarship, one of the most prestigious undergraduate scholarships in the natural sciences, mathematics, and engineering in America. Arvind Gupta was given an Honorable Mention. For a nice UVAToday article see https://www.news.virginia.edu/content/goldwater-scholarship-propels-uva-students-exploration-universe For more on the Goldwater Scholarship, see https://goldwater.scholarsapply.org For the list of the 2017 Scholars see https://goldwater.scholarsapply.org/2017-scholars/ and for list of the 2017 Honorable Mentions see https://goldwater.scholarsapply.org/2017-honorable-mentions/ ### Pennies from Heaven Friday, March 17 2017 From USA TODAY: "There's a tale we've all heard: A penny dropped from the top of the Empire State Building would fall at such a rate it would impale and kill anyone it hit down below. The myth somehow weaseled its way through the generations, horrifying elementary school students and causing reasonable people to wonder if a day of New York City sightseeing would be their last. But quietly, about a decade ago, University of Virginia physics professor Louis Bloomfield put those fears to rest by happily getting pelted with pennies from high above. He answered the question and lived to tell about it." ### Louca Elected President of NSSA Sunday, March 5 2017 Prof. Despina Louca has been elected to serve a four year term as President of the Neutron Scattering Society of America. ### DeZoort Wins Best Poster Award at 2016 PhysCon Monday, January 23 2017 Gage DeZoort's poster, Anomalous Signal Reduction in the CMS ECAL Trigger, won a Best Poster award at the 2016 Quadrennial Physics Congress (PhysCon) held November 3-5, 2016, in San Francisco, CA. The$200 OSA (Optical Society of America) Poster Awards for General Physics recognize posters that explore general themes related to Physics with an emphasis on how optics and light cross all disciplines of the field.

For more, see:

http://www.sigmapisigma.org/sigmapisigma/congress/2016/poster-presentations

### Liuti to serve on Physical Review C Editorial Board

Friday, January 20 2017

Prof. Simonetta Liuti has been selected to serve on the Physical Review C Editorial Board for a three years term beginning on January 2017.

### UVa's SPS Chapter Recognized as Outstanding

Thursday, January 5 2017

UVa's SPS chapter has been named a 2015-16 SPS Outstanding Chapter.   This honor is only given to the top 10% of all SPS chapters in the country.

The Director of the Society of Physics Students & Sigma Pi Sigma writes: "You and your chapter officers have earned this moment in the spotlight to recognize your efforts to build community and transform students into successful professionals."

For more information, see:
https://www.spsnational.org/awards/outstanding-chapter

### 'Hoo You Gonna Call

Tuesday, December 6 2016

UVa Physics alumnus (graduate and undergraduate) James Maxwell played an important technical role in the recent Ghostbusters movie.  His research apparatus served as a model for the movie's laboratory and he served as technical consultant, even writing a "history" of the proton pack.

Fore more information, see the Virginia magazine article:

http://uvamagazine.org/articles/hoo_you_gonna_call

### Cox Named 2016 AAAS Fellow

Friday, December 2 2016

Brad Cox's election as AAAS Fellow is celebrated in UVAToday.  From the article:

"Cox was honored for his contributions to the field of experimental high-energy physics, particularly in the discovery of the Higgs particle.

The tradition of AAAS Fellows began in 1874 and is considered a prestigious distinction among scientists. This year, 391 of the 10 million-member organization – the world’s largest general scientific society – have earned this honor for their scientifically or socially distinguished efforts to advance science. Members earn the rank of fellow after a nomination process by their peers within their fields or by selection of AAAS’s chief executive officer."

UVAToday article:

https://www.news.virginia.edu/content/accolades-scientists-bloom-brautigan-cox-named-2016-aaas-fellows

AAAS Announcement:

https://www.aaas.org/2016-fellows

### 2016 SESAPS Conference

Thursday, November 17 2016

From November 9-12, 2016, the UVa Physics department hosted the 83rd Annual Meeting of the Southeastern Section of the American Physical Society (SESAPS):

The conference drew over 400 attendees, and featured 210 talks and 78 poster presentations, making it the largest Southeastern Section meeting ever held. Slides from many of the talks can be viewed through the conference agenda:

http://sesaps2016.phys.virginia.edu/other-view?view=standard_inline_minutes

### Lee's Work on a Novel Solar Cell Material Highlighted in UVAToday

Friday, October 21 2016

From UVaToday:

"... scientists and engineers at the University of Virginia, with colleagues at the NIST Center for Neutron Research, the Oak Ridge National Laboratory and Cornell University, have made new inroads on understanding the fundamental physics behind how these cells work in a variety of "structural phase transitions."

They detail their findings in a paper published Oct. 21 in the journal Science Advances, where they identify how organic molecules in the structures play a crucial role in how the phase transitions occur.

By microscopically probing the materials using neutron-scattering experiments and computer simulations, they have discovered ways to markedly expand the stable range of the desired structure for the solar cell during temperature changes. The results could potentially revolutionize solar cell technology by speeding the process of designing solar cell materials that are both efficient and stable over a wide range of temperatures, while remaining inexpensive to produce in large quantities.

"This opens new opportunities to unlock the full potential of the HOIP-based solar cells in real applications," said UVA physicist Seung-Hun Lee, who led the study with his colleague, UVA chemical engineer Joshua J. Choi."

Also see the Sciences Advances article at:
http://advances.sciencemag.org/content/2/10/e1601650

### Dukes Describes Cosmic Pain

Monday, October 17 2016

According to Prof. Craig Dukes, "Cosmic rays can be a real pain."  Dukes contributed a Fermilab "News at work" article discussing the work that he and his collaborators are doing to mitigate the adverse effects of cosmic ray muons on their neutrino physics experiments.

The UVA group, which includes professor Craig Group, research scientists Ralf Ehrlich and Yuri Oksuzian, graduate student Steve Boi, and many undergraduate students, will be fabricating the Mu2e Cosmic Ray Veto in the High Energy Physics Laboratory, before shipping it out to Fermilab.  It will be the largest construction project ever done by the UVA High Energy Physics Group.

See the article at:
http://news.fnal.gov/2016/10/cosmic-rays-pain/

### Negative Refraction of Electrons in Graphene Observed

Friday, October 7 2016

Negative refraction for electrons passing a boundary has been observed by a team including Avik Ghosh, an Affiliated Professor of Physics.  The results have been published in Science.

For more, see the SEAS Press Release:
http://enews.seas.virginia.edu/electrons-in-graphene-behave-like-light-only-better/

For the Science article, see:
http://science.sciencemag.org/content/353/6307/1522

### Memories and energy landscapes of magnetic glassy states

Monday, October 3 2016

Understanding how memory emerges from a complex network of neurons in our brain remains a challenging task in cognitive science.  Memory also arises in physical systems with complex energy landscapes such as glasses, disordered magnets, and social networks. Now, an international team led by S.-H. Lee of the University of Virginia has revealed the intricate relation between how the systems remember their past and their complex energy landscapes. The findings, published in the journal Proceedings of the National Academy of Sciences of U.S.A., show that two magnetic glassy states, called spin glass and spin jam, exhibit distinct memory effects; a stronger memory for the spin glass and a weaker memory for the spin jam. The research also revealed by Monte Carlo simulations that the characteristics of how they remember can be accounted for by two distinct energy landscapes; a fractal rugged funnel-like energy landscape for the spin glass and a non-fractal non-hierarchical energy landscape with rough flat bottom for the spin jam. Their findings illustrate that a combination of experimental and computational works can directly probe the intricate relation between memory and energy landscape, which is essential in understanding the nature of the intrinsic slow dynamics in glassy states.

The team of University of Virginia is made of Seung-Hun Lee's group (Anjana Samarakoon, Tianran Chen, Junjie Yang, and S.-H. Lee), a new theoretical faculty of Physics Gia-Wei Chern, and Israel Klich. Anjana Samarakoon and Taku Sato of Tohoku University have performed the experiments, starting when Anjana spent two months in the summer of 2015 at Sato's lab in Sendai, Japan. Tianran Chen has performed the computational work in collaboration with Gia-Wei Chern. Junjie Yang and Zhou's group at University of Tennessee have provided the samples. Seung-Hun, Gia-Wei, and Israel wrote the paper.

* A. M. Samarakoon, T. J. Sato, T. Chen, G-W. Chern, J. Yang, I. Klich, R. Sinclair, H. D. Zhou, S.-H. Lee. Aging, memory, and nonhierarchical energy landscape of spin jam. Proceedings of the National Academy of Sciences of U.S.A. doi: 10.1073/pnas.1608057113 (2016).

### Cates' Group Develops Novel Imaging Technique

Thursday, September 29 2016

From UVAToday:

A unique new imaging method, called "polarized nuclear imaging" - combining powerful aspects of both magnetic resonance imaging and gamma-ray imaging and developed by physicists in the University of Virginia's departments of Physics and Radiology - has potential for new types of high-resolution medical diagnostics as well as industrial and physics research applications.

"This method makes possible a truly new, absolutely different class of medical diagnostics," said Wilson Miller, who, along with his colleague Gordon Cates, directed the research. "We're combining the advantages of using highly detectable nuclear tracers with the spectral sensitivity and diagnostic power of MRI techniques."

For more, see:

### Chakdar Wins UVa Wide Postdoctoral Poster Competition

Wednesday, September 21 2016

Shreyashi Chakdar has been awarded the First Place and the Audience Choice awards for the poster presentations in the "Physical Science and Engineering category" of University of Virginia Postdoctoral Research Symposium held on Tuesday, Sep 20th, 2016 at the Newcomb Hall, UVa.

Chakdar is currently a postdoc working with Dr. P.Q. Hung and presented her ongoing research work titled 'The search for 'mirror' quarks with distinguished signatures at the 13 TeV LHC' at the symposium.

For more, see:
https://postdoc.virginia.edu/node/587

### NOvA shines new light on how neutrinos behave

Friday, September 16 2016

NOvA issued a press release and announced new results on the disappearance of muon neutrinos at the 38th International Conference on High Energy Physics.  From the press release:

"NOvA scientists have seen evidence that one of the three neutrino mass states might not include equal parts of muon and tau flavor, as previously thought. Scientists refer to this as "nonmaximal mixing," and NOvA's preliminary result is the first hint that this may be the case for the third mass state."

The UVa Antimatter Asymmetry group has been a member of NOvA since its inception. Among other things, they designed and built the power distribution system that powers all of the electronics.

### Bloomfield Explains Olympic Freestyle

Wednesday, August 10 2016

UVA physics professor Lou Bloomfield explains some of the fundamental forces at work in Olympic freestyle swimming, and how swimmers can use science to get ahead.

https://www.washingtonpost.com/video/sports/swimming-meets-science-physicist-explains-olympic-freestyle/2016/08/06/86529d26-5b4d-11e6-8b48-0cb344221131_video.html

### DeZoort Elected SPS Associate Zone Councilor

Tuesday, June 14 2016

Gage DeZoort has been elected to serve as Zone 4 Associate Zone Councilor (AZC) for the 2016-2017 school year. His term began on June 12, 2016. On the SPS National Council, Gage will be a representative and a voice for students’ opinions and concerns, and he will make decisions that affect SPS members and the international physics community. For more, see:

www.spsnational.org/about/governance/gage-dezoort

### Day Interviewed on Future of Nuclear Energy

Thursday, May 26 2016

From CBS19:

"I really don't think there is much future for Nuclear energy," said Donal Day, a Nuclear Physicist who teaches at University of Virginia. "I don't think it's because people are opposed to it, but because the market just won't support it."

Day says that the future of energy in the state should be renewable energies.

"Wind, solar, and battery," said Day. "Things like that make it too competitive to be worthwhile."

For the full story and video, see:
http://www.newsplex.com/content/news/Is-Nuclear-Energy-the-future-of-energy-in-the-United-States-380737731.html

### Principato Meets Italian Prime Minister

Tuesday, April 19 2016

Earlier this month, Cristiana Principato, a UVa graduate student in the Physics Department, had the opportunity to meet with Italian Prime Minister Matteo Renzi when he visited the Fermi National Laboratory where Cristiana conducts her research. Italy has a long history of collaboration on particle physics experiments at Fermilab. During the event Cristiana also met Nobel Laureate Carlo Rubbia.

Some photos from the event can be found at:
vms.fnal.gov/asset/detail?recid=1940629
vms.fnal.gov/asset/detail?recid=1940630
vms.fnal.gov/asset/detail?recid=1940680
vms.fnal.gov/asset/detail?recid=1940631

### Bixel, Diehl, and Slomka Elected to Phi Beta Kappa

Wednesday, March 30 2016

David Bixel, Adam Diehl, and Matthew Slomka were elected to the Beta Chapter of Virginia of Phi Beta Kappa.

Prof. Carrie Douglass, President, Phi Beta Kappa, Beta Chapter of Virginia, writes:

"As the oldest and most distinguished honor society in the country, Phi Beta Kappa offers membership to less than one percent of all undergraduates. Many of the leading figures in American history and culture have begun their careers with election to the society, including seventeen presidents of the United States. As a result, membership is a remarkable accomplishment, both for the student who achieves it and the faculty and staff whose support and guidance has led to this milestone."

For more information, see:
college.as.virginia.edu/phi-beta-kappa

### Special Physics Department Medical Physics Scholarship!

Tuesday, February 23 2016

The Department has a $5,000 Scholarship available for this summer, 2016, to support a declared physics major to work with a faculty member on a medical physics project. The faculty member is not required to be member of the Physics Department, but the student must be a declared major, with a strong academic record, and be rising third or fourth year. Note that a supporting letter from the faculty member is required. The deadline for applications is March 4, 2016. Forms are available online at: http://www.phys.virginia.edu/Announcements/MedicalPhysics/ApplicationForm.docx ### UVa's SPS Chapter Again Recognized as Distinguished Thursday, February 11 2016 For the third straight year UVa’s SPS chapter has been recognized as “distinguished”. This honor is only given to the top 20% of all SPS chapters in the country. For more about SPS Outstanding Chapter Awards, see: www.spsnational.org/awards/outstanding-chapter ### Michael Mann on Climate Change Monday, February 8 2016 Michael E. Mann, Distinguished Professor of Atmospheric Science at Penn State University, spoke on The Physics of Climate Change at the UVa Physics Department on Friday, February 5. A video of Prof. Mann's talk can be seen at the link below: ### Mitchell Scholarship Deadline Approaching Friday, January 29 2016 Mitchell and other Scholarships are available to support declared undergraduate physics majors in their third or fourth year of study at UVa in the academic year 2016-17. They are competitive and awarded annually by the Department to rising 3rd and 4th year students. The selection process will be based on submission of an application, a recent academic SIS transcript, and a letter of support from the Physics Department faculty member with whom you will be working. The scholarships will be awarded primarily on the basis of academic achievement. The scholarships will be up to$5,000 in value.

The application deadline is February 19, 2016.

The application form is available online at: http://www.phys.virginia.edu/Announcements/Mitchell/ApplicationForm.docx

### Deaver featured in Physics Focus

Monday, January 4 2016

Deaver's seminal work with William Fairbank on magnetic flux quantization is featured in a Physics Focus: Landmarks article (Physics is an American Physical Society site that provides daily on-line news and commentary about papers from the APS journal collection).  This work provided evidence of electron paring in superconductors, as Fritz London had predicted that the smallest flux unit would be hc/e while the experiment yielded a value of hc/2e.

From the Focus: Landmarks article:

"In the late 1950s, graduate student Bascom Deaver worked with William Fairbank at Stanford University in California to test this prediction. To make a superconducting ring, Deaver electroplated a thin layer of tin onto a copper wire. Deaver and Fairbank tested two different tin cylinders, each about one centimeter long, with an internal diameter of just over 10 micrometers.

Placed in a magnetic field and cooled in liquid helium to less than 3.7 degrees Kelvin, the tin became superconducting. The researchers then turned off the magnetic field. To measure any magnetic flux that remained trapped within the cylinder, they vibrated it back and forth at 100 hertz and measured the electrical signal generated in nearby coils of wire. They found that the flux through the cylinder increased in a stepwise fashion with increasing strength of the original applied field. The height of each step, however, was half the flux unit that London had predicted."

See the Landmarks article:

### Sackett Viewpoint featured in Physics

Tuesday, November 17 2015

Cass Sackett wrote a Viewpoint, "Cool Physics with Warm Ions", for Physics, an American Physical Society site that provides daily on-line news and commentary about papers from the APS journal collection.  According to Physics, Viewpoints are "Commentaries on papers written by prominent experts in their field. Written by an active researcher for an audience with a college-level background in physics."

For Cass' Viewpoint, see:

### Zheng Elected a Fellow of the American Physical Society

Thursday, October 22 2015

Upon the recomendation of the Topical Group on Hadronic Physics (GHP), Xiaochao Zheng has been elected a Fellow of the American Physical Society.  The citation reads:

"For advancing the measurement of parity violating asymmetry in electron-nucleon deep inelastic scattering.

Prof. Zheng's name and Fellowship citation will be published in APS News and will appear on the Fellowship Page of the APS web site [www.aps.org].

### Alumnus Tanner Awarded APS Isakson Prize

Wednesday, October 21 2015

UVa Physics Alumnus David Tanner (B.A. 1966, M.S. 1967), now Distinguished Professor of Physics at the University of Florida, has been awarded the 2016 Frank Isakson Prize for Optical Effects in Solids by the American Physical Society.

Citation:
"For insightful experiments and analyses on a wide variety of quantum solids with strong electronic correlations in general, and cuprate superconductors in particular, using optical spectroscopy."

For more, see:

### Liuti and Rajan U.Va. recipients of DOE Topical Collaboration Award

Tuesday, October 20 2015

Simonetta Liuti and her student Abha Rajan are the U.Va. recipients of DOE Topical Collaboration Award entitled "Coordinated Theoretical Approach to Transverse Momentum Dependent Hadron Structure in QCD (TMD Collaboration)".

Participating institutions are: Duke University, Jefferson Laboratory, Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, Los Alamos National Laboratory, MIT, New Mexico State University, Penn State University at Berks, Old Dominion University, Temple University, University of Arizona, University of Kentucky, University of Maryland, University of Virginia.

### Robert Mina: Sushi and Sliding Doors

Monday, October 12 2015

Robert Mina's article on the 2015 CHEP (Conference on Computing in High Energy and Nuclear Physics) was featured in The SPS Observer.

For more, see:

### Xiaochao Zheng Featured in UVaToday's "U.Va. Faculty Will Realize Their 'Dream Ideas,' Thanks to Mead Grants"

Tuesday, September 29 2015

From UVa Today: "...Xiaochao Zheng, associate professor of physics

Because 3-D printing is a relatively new field, many undergraduate physics students have not been exposed to this increasingly useful tool. Zheng’s dream idea includes purchasing a 3-D printer and inviting groups of three to five students to develop increasingly innovative, sophisticated and complex 3-D models over the year. The semester will culminate in an award ceremony recognizing the students’ most outstanding models."

Click on the link for the full article:

### Love triangles, quantum fluctuations and spin jam

Wednesday, September 2 2015

Lee's group presented experimental evidence for the existence of a topological spin state called spin jam. When magnetic moments are interacting with each other in a situation resembling that of complex love triangles, called frustration, a large set of states that are energetically equivalent emerge. This leads to exotic spin states such as spin liquid and spin ice. In their paper recently published in the Proceedings of the National Academy of Sciences (PNAS), Lee's group (Yang, Samarakoon, Dissanayake, and Lee) along with Klich presented evidence for the existence of a topological glassy state, that they call a spin jam, induced by quantum fluctuations. The case in point is SrCr9pGa12-9pO19 (SCGO(p)), a highly frustrated magnet, in which the magnetic Cr ions form a quasi-two-dimensional triangular system of bi-pyramids. This system has been an archetype in search for exotic spin states. Understanding the nature of the state has been a great intellectual challenge. The UVA group's new experimental data and their theoretical spin jam model provide for the first time a coherent understanding of the phenomenon. Furthermore, the findings strongly support the possible existence of purely topological glassy states.

For more, see:
http://www.pnas.org/content/early/2015/08/27/1503126112.full

### Carr and Sperling Receive Dean's Scholarships

Friday, June 5 2015

Peter Carr received the Lawrence Harrison Kilmon and May Lewis Kilmon
Scholarship for outstanding academic achievement and Owen Sperling received the George C. and Carroll F. M. Seward Scholarship for outstanding academic achievement and outstanding service to others.

### Xiao Receives ISO Academic Excellence Award

Tuesday, May 26 2015

Liting Xiao received the International Studies Office
Graduating International Students Awards in the category for Academic Excellence

See

### Janet Rafner Featured in UVaToday Series on Class of 2015

Thursday, May 21 2015

From UVaToday:

"... the fateful combination of being encouraged to undertake interdisciplinary study and a chance encounter with a professor led to an internship in Paris and eventually to curating an exhibition at the Science Museum of Virginia in Richmond. That, in turn, led to her application and acceptance as a Fulbright Scholar.

Rafner will study in Denmark, working with a MAYA software specialist on new ways of illustrating scientific principles. MAYA is software normally used to create video games, and is not yet widely used in the sciences. One of the projects Rafner will work on is animating the Navier-Stokes equations, which describe the motion of viscous fluids and serve as the basis to help model everyday occurrences such as water flow in pipes or turbulence in an aircraft."

For more, see:

### Group wins 2015 Cory Family Teaching Award

Wednesday, May 20 2015

Assistant Professor Craig Group has won the 2015 Cory Family Teaching Award. This is a prize presented annually to two untenured tenure-track professors in the College of Arts and Sciences, recognizing excellence in undergraduate instruction.  The award will  be recognized on October 23rd at Fall Convocation in the JPJ Arena.

### Moran Chen Featured in UVaToday Series on Class of 2015

Saturday, May 9 2015

From UVaToday:

“During Moran Chen’s time as a University of Virginia  physics doctoral student, she helped set a world record in an area of physics that could play a crucial role in giving rise to a prototype quantum computer.

Her paper detailing the achievement won her the 2014 Allan T. Gwathmey Memorial Award, an honor reserved for the most accomplished graduate students in the sciences at U.Va., recognizing a distinguished scholarly publication.”

For more, see:

### Yanchenko Wins Outstanding Undergraduate Physics Major Research Award

Friday, May 8 2015

The winner of this year's Outstanding Undergraduate Physics Major Research Award is Anna Yanchenko, whose research was entitled "THz Field Enhancement and Electron Emission from Au DENA Growth".  Her research professor was Robert Jones.

Anna will receive her award at our graduation ceremony next weekend.

### Jones Elected Vice Chair of DAMOP

Tuesday, May 5 2015

Bob Jones has been elected Vice Chair of the APS Division of Atomic, Molecular, and Optical Physics (DAMOP) starting in June. This is a four year service commitment to the division with consecutive single year terms as Vice Chair, Chair Elect, Chair, and Past Chair.

DAMOP was founded in 1943, and was the first division of the American Physical Society. It has more than 3,000 members and is the third largest APS division, behind Condensed Matter Physics and Particles and Fields. Members are interested in the fundamental physics underlying the properties of atoms, simple molecules, electrons and light, as well as the interactions between them.

### Wong Wins Gwathmey Award

Wednesday, April 22 2015

Dear All,

Please join me to congratulate Gabriel Wong for receiving one of this year's Allan T. Gwathmey Memorial awards.

The Gwathmey award is an honor reserved for the most accomplished graduate students in the sciences at UVa in recognition of a distinguished scholarly publication.

With Gabriel winning this year's award, graduate students from Physics have won the Gwathmey award in two consecutive years - Moran Chen won in 2014.  Let's keep this momentum going.

Cheers,
Joe Poon

### Chatterjee Garners NSF Career Award

Thursday, April 2 2015

From UVAToday:

NSF’s Early Career Development Program supports junior faculty who perform outstanding research, are excellent educators and integrate education and research into their academic activities. The five-year grants are among the most prestigious available to young faculty in science and engineering fields, and are designed to provide significant resources to the early-stage development of careers.

### Cates Elected Vice Chair of the APS Division of Nuclear Physics

Wednesday, February 12 2014

Gordon Cates has been elected Vice Chair of the APS Division of Nuclear Physics (DNP), the beginning, in April 2014, a four year commitment in which he will next be the Chair Elect, then Chair, and finally Past Chair.

### Zheng, et al., Report Electron-Quark Parity Violation in Nature

Sunday, February 9 2014

From Science:

"... electrons also interact with the nuclei through the weak force, which violates parity and is not mirror symmetric. As a result, right-spinning and left-spinning electrons ricochet off the target differently, creating a slight asymmetry in their scattering pattern
...
according to the standard model, the right- and left-spinning quarks should interact slightly differently with an incoming electron, producing an additional asymmetry, or parity violation, when the spin of the incoming electrons is flipped. Now, Xiaochao Zheng, a nuclear physicist at the University of Virginia in Charlottesville, and colleagues have observed that smaller contribution, as they report today in Nature."

This work was done at the Thomas Jefferson National Accelerator Facility:
http://hallaweb.jlab.org/experiment/PVDIS/publications/index.html

For more see:

http://news.sciencemag.org/physics/2014/02/quarks-know-their-left-their-right

and from UVaToday:

https://news.virginia.edu/content/uva-led-study-puts-quarks-looking-glass

Nature article:

### INPP 2nd Annual Lecture: Gordon Kane

Thursday, January 30 2014

*** Please note: The following lecture has been rescheduled for April 18, 2014 ****

Prof. Gordon L. Kane will lecture on "String Theory, Our Real World, and Higgs Bosons" in Physics 203 on Friday, April 18, 2014.

For more, see:
http://www.phys.virginia.edu/Announcements/INPP/2014.pdf

### Brad Cox Named Outstanding Virginia Scientist

Thursday, January 16 2014

On January 15, 2014, UVaToday reported:

"In recognition of Cox's contributions to the search for and discovery of the Higgs, Virginia Gov. Terry McAuliffe and the Science Museum of Virginia today named him as one of two Virginia Outstanding Scientists for 2014."

For more, see the UVaToday News Release:

### Third Annual Undergraduate Physics Research Symposium

Thursday, December 5 2013

The Third Annual Undergraduate Physics Research Symposium was held on November 1, 2013. Six undergraduates presented their physics-related research at the event. Topics presented were as follows:

Yekaterina Gilbo "The Role of Solar Wind in Magnetospheric Oscillations"

Alyssa Henderson "Non-linear Multi-dimensional Optimization for use in Wire Scanner Fitting"

Elton Ho "Noise Studies on Silicon Avalanche Photodiodes and Pure Cesium Iodide Crystals for the Belle II Experiment"

Ranjani Sarma "The Study of Neutrino Properties from Dark Matter Annihilation in the Sun"

Michael Viray "Variable Terahertz Transparencies of Different Plastics"

Sophia Xiao "Identification of Upward going Muons for Dark Matter Searches at the NOvA Experiment"

### Fendley, Lee, Pfister, Thacker - APS Fellows 2013

Monday, December 2 2013

Dear Colleagues,

We have learned from APS that four of our colleagues - Paul Fendley,
Seunghun Lee, Olivier Pfister and Hank Thacker have been elected
APS Fellows 2013. Please join me in congratulating all of them
for this well-deserved honor.

My sincere thanks to our APS Nominating Committee for a job well done!
(Dinko Pocanic, Brad Cox, Michael Fowler, Stu Wolf, and Lou Bloomfield)

Cheers,
Joe

### Third Virginia and Maryland String and Particle Theory Meeting

Monday, October 28 2013

On Saturday, November 2, 2013, Diana Vaman and UVa's Physics Department will again play host to the Virginia and Maryland String and Particle Theory Meeting.

The invited speakers are:

Justin Khoury (University of Pensylvania, Philadelphia)
Igor Klebanov (Princeton University, Princeton)
Albion Lawrence (Brandeis University, Waltham)
Jessie Shelton (Harvard University, Cambridge)

For more see:
http://physics1.howard.edu/~vadcmd/131102.html

### U.Va. Physicists Celebrate Their Role in Nobel-Winning Higgs Discovery

Wednesday, October 9 2013

From UVa Today:

"The Royal Swedish Academy of Sciences on Tuesday awarded the Nobel Prize in Physics to theorists Peter Higgs and Francois Englert to recognize their work in developing the theory of what is now known as the Higgs field, which gives elementary particles mass. University of Virginia scientists played a significant role in advancing the theory and in discovering the particle that proves the existence of the Higgs field – the Higgs boson.

Brad Cox, a professor of physics in U.Va.'s College of Arts & Sciences, served for three years on a sequence of eight analysis review committees, each comprising four physicists, that oversaw analysis of Higgs discovery data from the Large Hadron Collider in Europe. He also was part of a four-person analysis review team that oversaw the discovery analysis for 2 1/2 years to the point where it could be determined that the evidence was strong enough that the Higgs particle had been confirmed. The discovery was announced at the Large Hadron Collider in July 2012 and further supported in December."

Full story:

### Joe Poon Serves on Excellence in Faculty Hiring Panel

Wednesday, October 2 2013

From UVaToday:

"A panel of U.Va. faculty members and a Human Resources consultant experienced in faculty searches shared a range of recruiting strategies. Dr. Sim Galazka, professor of family medicine in the School of Medicine; Joe Poon, William Barton Rogers Professor of Physics; Archie Holmes, professor of electrical and computing engineering; and Catherine Brand, who works on the Executive Search Group, all agreed that publishing advertisements for job openings is only one tool in what should be a multi-pronged approach.

The panelists stressed that faculty members should consider search committee work as part of their service duty, and if necessary, should ask for a break on other service activities.

Their recruiting suggestions included turning to networks of colleagues to ask about potential job candidates to field a diverse pool, and making personal contact with those individuals; trying innovative ideas, such as the physics department has done by producing a video for recruiting; being reflective during the search process to review whether the pool is diverse and the process is going well, and making changes if necessary; and keeping in touch with potential candidates, even if they can't be hired at the time."

### Pam Joseph Highlighted in Dean Woo's Zintl Award Acceptance Speech

Monday, September 30 2013

In accepting this year's Elizabeth Zintl Leadership Award, presented by the Women's Center, Meredith Woo, the Dean of Arts and Sciences, mentioned our own Pam Joseph:

"Pamela Joseph is the research administrator in our Physics Department. For over thirty years she helped prepare proposals for external funding, going carefully over every number, every column, every punctuation mark in every proposal, so that the rewards can go to the scientists she supports. She is a woman at work, and every bit a leader without whom funding for Physics would gravely suffer. She has been doing this for 33 years."

For full text of Dean Woo's speech, see:

### Hung Awarded Vietnam's Medal for the Cause of Science and Technology

Thursday, August 29 2013

On Monday, August 12, 2013, P.Q. Hung was decorated by S.E. Nguyen Quan, Vietnam's Minister of Science and Technology, for his important contribution to the advances of Science and Education in Vietnam.

A nice photo of the ceremony can be seen at:
http://www.phys.virginia.edu/images/pqh_medalceremony.JPG

and the certificate at:
http://www.phys.virginia.edu/images/pqh_medalcertificate.JPG

### Pfister Wins Distinguished Research Career Award

Friday, July 12 2013

From UVa Today:

"Pfister, professor of physics in the College, is a noted researcher in quantum information and quantum computing. The development of quantum computers, one of the most challenging but promising areas of information science, would have capabilities far beyond today’s most advanced supercomputers. They could be used for incredibly detailed, data-heavy simulations, such as understanding the minute details of the interactions of molecules in biological systems, or to unravel some of the biggest mysteries of the workings of the universe by providing a way to possibly test quantum mechanics."

### Summer Edition of the "Physics Day Show"

Wednesday, July 3 2013

To support our recruiting efforts, and for the fun of it, physics students teamed up with faculty and staff to organize two summer physics shows on July 9 and July 30 at 7 pm in room 203 in the Physics building. Spectacular and pedagogical demos will be shown around the topic "magnetism".

### Pam Joseph Receives 2013 Outstanding Contribution Award

Tuesday, May 21 2013

From UVaToday:

"Do you know which department in the University of Virginia's College of Arts & Sciences is best grant-funded?

The Department of Physics claims that distinction. And several faculty members there say it's due to the work of research administrator Pamela Joseph, one of this year's winners of a Leonard W. Sandridge Outstanding Contribution Award."

### Hoxton Lecture: The World According to Higgs

Thursday, April 18 2013

Professor Chris Quigg

New developments in particle physics offer a new and radically simple conception of the universe. Fundamental particles called quarks and leptons make up everyday matter, and two new laws of nature rule their interactions. Until July 4, 2012, our neat story was missing one piece, a particle called the Higgs boson. Without it, there would be no atoms, no chemistry, no liquids or solids, and no basis for life. Why did thousands of physicists devote decades to the hunt, and how does the "discovery of the century" change the way we see the world?

Thursday, April 18, 2013, 7:00 p.m.
Chemistry Building, Room 402
McCormick Road, Charlottesville

For more, see:
http:http://www.phys.virginia.edu/Announcements/Hoxton/

### Eleventh Physics Department Research Poster Competition Winners

Wednesday, April 10 2013

During the week of April 1 through April 5, 2013, the Physics department held a poster competition to highlight graduate student research. The competition was open to all students who had entered their third year in the graduate program and beyond.

1st prize winner:
Pei Wang for his poster on "Quantum Computing by Colorful Laser Light"

2nd prize winner:
Huong Nguyen for her poster on "Search for the Standard Model Higgs boson in the leptons plus jets final states"

3rd prize winner:
Moran Chen for her poster on "Quantum-wire Cluster States in the Quantum Optical Frequency Comb"

4th prize winner:
Mandy Gu for her poster on "Metal-Insulator Transition Induced in CaVO3 and SrVO3 Thin Films"

For more, see:
http://www.phys.virginia.edu/Research/GraduatePosters/

### UVa Featured on APS TV at March Meeting

Monday, March 18 2013

UVa's is one of the physics programs featured on APS TV at the March Meeting:

http://www.aps.org/meetings/march/services/apstv.cfm

From the APS TV page:

"The University of Virginia is ranked #2 in the U.S. for public universities and has one the largest undergraduate Physics programs in the nation. The mission of the Department of Physics is to provide an excellent education and research opportunities to aspiring scientists. It does this by offering a range of excellent classes, including the extremely popular introductory class, "How Things Work". UVa's faculty are involved in a variety of research areas including nuclear particle physics, atomic physics, optical physics, condensed matter physics, material matter physics, as well as nanotechnology. APS TV shows you the exciting research underway!"

See the video produced by WebsEdge (http://WebsEdge.com/) on YouTube at:

http://www.youtube.com/watch?v=i8S6gewmHEM

### Hirosky Participates in "Science Straight Up" Public Outreach

Thursday, March 14 2013

From UVa Today:

"Have you ever wondered what, exactly, a Higgs boson is? Or what a future quantum computer might be able to do? Or if climate change is real?

Then ask a scientist. Maybe with a drink in your hand.

You can Thursday evening at 7:30 at Black Market Moto Saloon in Charlottesville, when University of Virginia physicist Bob Hirosky will talk about the Higgs boson and why it's such big news these days. Best of all, you can ask Bob about it during an informal 20-minute-or-so Q&A period.

The event – free and open to anyone – is part of a new U.Va. program called Science Straight Up, a monthly "science café" designed to promote community conversations about timely scientific topics in a relaxed setting. You can't beat a saloon for that."

For more, see:

http://news.virginia.edu/content/science-two-way-street-new-program-brings-science-community

and

### Bloomfield's "Vistik" Highlighted in UVaToday

Thursday, February 28 2013

From UVaToday:

"If anything bothers University of Virginia physicist Lou Bloomfield, it's a wobbly table. So much so that he actually invented a material to eliminate the problem. The material, a type of silicone rubber that is both rigid and fluid – a "viscoelastic" solid – can be placed under a table leg where it conforms to the shape of the leg bottom and the floor surface, perfectly filling the gap.

It turns out, the material can do a lot more than that."

For the full story, see:
http://news.virginia.edu/content/uva-physicist-bloomfield-develops-new-silicone-rubber

### Day PRC Paper Included as Editors' Selection

Monday, January 7 2013

A PRC paper presenting the results of Prof. Donal Day's work with John Arrington (our recent colloquium speaker), Nadia Fomin (his former graduate student), and a few others on the EMC effect has been included as an Editors' Selection for the month of December.

According to the PRC:
"As a service to both our readers and authors, we list a small number of papers published in Physical Review C that the editors and referees find of particular interest, importance, or clarity. These Editors' Suggestion papers are marked with a special icon that contains the printer's mark that appeared on the covers of all sections of the Physical Review until about a decade ago."

A link to the paper:
http://link.aps.org/abstract/PRC/v86/e065204

### Cates Highlighted for Diquark Work

Thursday, December 6 2012

From DOE Pulse:

... researchers have found intriguing new evidence on how the different kinds of quarks behave inside protons and neutrons. The data and insights, which were published in the journal Physical Review Letters, have recently received further support and scrutiny from theory.

Gordon Cates, a physics professor at the University of Virginia, is a coauthor on the paper. ...

"The original diquark that was conceived by people was really a point-like object, of two point-like quarks sitting right next to each other, almost indistinguishable. And that's probably not what's going on. The diquarks that are being suggested here are a little on the fuzzy side, not quite the point-like things that were imagined years ago," Cates explains. "There are at least two serious calculations that very clearly suggest the diquark is real. So we see these behaviors, and they're unexpected. And they do seem to have some very interesting implications."

For more, see the DOE Pulse article:
http://www.ornl.gov/info/news/pulse/no376/feature.shtml

and the referenced Physical Review Letter:
http://prl.aps.org/pdf/PRL/v106/i25/e252003

### UVa Physics Majors: Funding Available for Summer Research!

Tuesday, December 4 2012

The UVa Physics Department is pleased to announce the availability of a number of Mitchell and other Summer Research Scholarships to support declared undergraduate physics majors to do research with a Physics Department faculty member next summer (2013). All who will be rising third or fourth year UVa physics majors at that time are eligible to apply.

For details, see:
http://www.phys.virginia.edu/Announcements/Mitchell/

### Bloomfield Invents "Molecular Velcro"

Wednesday, November 28 2012

From NewsPlex.com:

Dr. Louis Bloomfield, a professor of physics at UVa, describes the material as being the "molecular equivalent of Velcro." The material bounces like a ball, stretches like silly putty, and sticks like glue but it's hard to describe exactly what it is.

"What I call it technically is, viscoelastic silicone rubber. It needs a good name. Alas, the great name "flubber" is already taken, but it's kind of a crazy material like flubber," Bloomfield said.

### Day Elected Fellow of the American Physical Society

Monday, November 19 2012

In recognition by his peers of his outstanding contributions to physics, Professor Donal Day has been elected a Fellow of the American Physical Society. His Fellowship Certificate will read:

"For his studies of high momentum transfer quasielastic electron scattering, scaling relations and the short-range structure of nuclei and for his contributions to the use of polarized targets in the study of nucleon form factors and spin structure functions."

His name and citation will be published in the March 2013 issue of APS News and will appear on the Fellowship Page of the APS Home Page, http://www.aps.org.

### Liuti Elected Vice Chair of SESAPS

Monday, October 15 2012

From the Southeastern Section of the American Physical Society:

"In the 2012 election, Professor Simonetta Liuti of the University of Virginia was elected Vice Chair. She will serve in the Chair line for the next four years."

### Zukai Wang Wins URA Visiting Scholars Program Award

Monday, October 1 2012

The URA Visiting Scholars Program at Fermilab has awarded Zukai Wang $20,452 to work on the “Search for Magnetic Monopoles in the NOvA Far Detector” For more information on the program, see: http://www.fnal.gov/pub/forphysicists/fellowships/ura_visiting_scholars/ For more on UVa's NOvA effort, see: http://galileo.phys.virginia.edu/research/groups/hep/aag/uva_aag_group.html#nova ### Second Virginia and Maryland String and Particle Theory Meeting Monday, September 24 2012 On Saturday, October 6, 2012, Diana Vaman and UVa's Physics Department will again play host to the Virginia and Maryland String and Particle Theory Meeting. The invited speakers are: Shinsei Ryu (U. Illinois, Urbana) Misha Stephanov (U. Illinois, Chicago) Rob Leigh (U. Illinois, Urbana) Herman Verlinde (Princeton U.) Tristan Hubsch (Howard University) For more see: http://physics1.howard.edu/%7Evadcmd/121006.html ### Bloomfield Explains Physics of Heroic Catch Wednesday, July 18 2012 From MSNBC: "The girl fell about 25 feet, which took about 1.25 seconds. The man stopped her fall in about 3 or 4 feet, which took about 0.1 second, depending on the stopping distance and how he supported her. So, she accumulated downward momentum over about 1.25 seconds and gave that momentum to the man (and ground) in about 0.1 seconds," Bloomfield told Life's Little Mysteries. For Bernard to bring the girl's body to a stop in one-twelfth of the time she spent accelerating toward him — that's 0.1 seconds of stopping time, compared to 1.25 seconds of falling time — he had to exert an upward force 12 times greater than her (downward) weight. (Pushing upward is how you slow a falling body to a stop.) That means, "If she weighs 50 pounds, the man and ground must push up with an average of 12 times that force, or 600 pounds." For more, see: http://www.livescience.com/21667-bus-driver-catches-falling-girl.html ### UVa's Higgs Effort Highlighted in Press Thursday, July 5 2012 From UVa Today: "We've had an observation that very likely is the Higgs," said University of Virginia physicist Brad Cox in the College of Arts & Sciences, who has been involved with the Higgs search at the Large Hadron Collider. "With more experimentation and analysis, we are within reach, possibly by the end of the year, of confirming that the particle that we have seen is the Higgs. If so, this will be one of the major findings in physics in half a century." Full Story: http://www.virginia.edu/uvatoday/newsRelease.php?id=19003 __________________ From The Daily Progress: "... Brad Cox, a physics professor at the University of Virginia and member of one of two independent teams that presented evidence of the discovery, gathered with colleagues on Grounds at 3 a.m. to celebrate." ### Jesse W. Beams Published in July 2012 Scientific American Friday, June 22 2012 An excerpt of an article by Ernest O. Lawrence and J. W. Beams in the July 2012 issue of Scientific American: "Light is one of the most familiar physical realities. All of us are acquainted with a large number of its properties, while some of us who are physicists know a great many more marvelous characteristics which it displays. The sum total of our knowledge of the physical effects produced by light is very considerable, and yet we have no satisfactory conception of what it is." For more, see: http://goo.gl/eIuEU ### Mitchell Summer Research Scholarships Awarded! Thursday, May 10 2012 Three of our physics majors have been awarded Mitchell Scholarships to do research with physics faculty this summer. Peter Breiding has been awarded$5,000 to work with Professor Gallagher designing and building a new tunable
laser, Davis van Petten has $5,000 to work with Professor Baessler on precision detection of neutron decay, and Anthony Charles has$1,250 for a
three-week project with Professor Vaman on string theory.

These Undergraduate Research Scholarships, awarded annually, are funded by a
generous bequest from the estate of our former colleague, Professor John
Mitchell.

For more, see:
http://www.phys.virginia.edu/Announcements/Mitchell/

### Loomis and Popovic Win Presidential Research Poster Competition

Tuesday, May 8 2012

From UVaToday:

"University of Virginia student researchers offered unique perspectives on the physical, legal and political worlds Friday as they presented their findings in the second annual Presidential Research Poster Competition at the Rotunda. ... The competition was divided into six categories, which were again subdivided among undergraduate, graduate and postdoctoral fellows. Teams of judges roamed the room, talking to presenters and assessing their projects. University President Teresa A. Sullivan handed out ribbons to the winners in each category.

Physical and Environmental Sciences
o Undergraduate student: Ryan A. Loomis, 'Broadband Reaction Screening for Interstellar Chemistry'

Translational and Applied Research
o Graduate student: Kosta Popovic, 'Development of an Integrated Multimodal Imaging System for Surgical Guidance'"

### UVa Credited with Originating National Physics Day

Wednesday, April 25 2012

From physicscentral:

"Physics fans, rejoice! April 24th is National Physics Day, and physics enthusiasts across the country are celebrating with fun physics demonstrations, public lectures, and other science events.

But National Physics Day isn't new; revelers have celebrated physics on or around April 24th for the past 18 years, starting in 1995 at the University of Virginia.

...

Imploding drums, demos on beds of nails, and exploding balloons have been a hit at the University of Virginia's celebrations in past years, said Steve Thornton, a University of Virginia physicist who organized the first National Physics Day."

> Link to our poster: http://www.phys.virginia.edu/Announcements/PhysicsDay/npd2012.pdf

### Tenth Physics Department Research Poster Competition Winners

Tuesday, April 24 2012

During the week of April 2 through April 6, 2012, the Physics department held a poster competition to highlight graduate student research. The competition was open to all students who had entered their third year in the graduate program and beyond.

1st prize winner:
Jooseop Lee for his poster on "Magnetic excitations in Fe-based superconductor"

2nd prize winner:
Anthony Palladino for his poster on "The PEN Experiment: Testing Lepton Universality"

3rd prize winner:
Hyunwook Park for his poster on "Long-range Rydberg-Rydberg molecules bound by the dipole-dipole interaction"

4th prize winner:
Sachith Dissanayake for his poster on "Neutron Scattering Studies on Quantum Magnets"

Honorable mention:
Mandy Gu for her poster on "Metal-Insulator Transition in CaVO3 Ultrathin Films"

For more, see:
http://www.phys.virginia.edu/Research/GraduatePosters/

### Jefferson Lab Searches for Heavy Photons Highlighted in Nature

Wednesday, April 4 2012

From Nature News in Focus

"In a three-week experiment due to start on 24 April, the electrons will crash into a thin tungsten target at 500 million times a second, creating a cascade of short-lived particles. Amid the debris, physicists with the Heavy Photon Search (HPS) are hoping that they will find signs of something exceedingly rare: a 'heavy' or 'dark' photon."

The article goes on to say:
"After the HPS's three-week test run, the beam will be shut down for an upgrade that will double its energy. This will allow the HPS and another project, the A Prime EXperiment (APEX), to explore other parts of the dark sector in 2015."

(Nilanga Liyanage and Blaine Norum are members of the APEX collaboration.)

Nature News in Focus article:
http://www.nature.com/news/physicists-hunt-for-dark-forces-1.10386

For more, see the Jefferson Lab APEX Proposal Presentation:
http://hallaweb.jlab.org/experiment/APEX/documents/RouvenEssig_12_16_09.pdf

### National Physics Day

Tuesday, April 3 2012

In celebration of National Physics Day, the 18th annual University of Virginia physics demonstration show will be held at 7 p.m. on Wednesday evening, April 25, 2012, in room 203 of the Physics Building, 382 McCormick Road. This highly anticipated event is a special family oriented physics demonstration show for the general public. Parking is available in the parking garage on Emmet Street, or after 5:00 p.m. in the football stadium lots.

Physics professors Bob Hirosky, Nilanga Liyanage, Stefan Baessler, and Bellave Shivaram will delight the crowd with strange and mystifying phenomena. Discover some peculiar properties of sound waves and learn about how electricity powers our homes, but be sure to keep an eye out for falling objects! As usual there will be plenty of surprises in store, and lots to learn about how our amazing universe works. These demonstrations will intrigue and excite both young and old, from novice to expert. Bring your family and friends, but come on time. For more information about this free public event, call 924-3781.

Contact: Helen McLaughlin at 924-3781 or email at him2b@virginia.edu

### Tenth Physics Department Research Poster Competition

Thursday, March 29 2012

During the week of April 2 through April 6, 2012, the Physics department will hold a poster competition to highlight graduate student research. The competition will be open to all students who have entered their third year in the graduate program and beyond. Senior students are particularly encouraged to participate by placing their posters in the main hallway, showcasing their works. The intent of the competition is twofold:

1) Increase awareness within the department of the variety of research topics currently under investigation by students,

and

2) Recognize student excellence in research and presentation.

### Virginia and Maryland String and Particle Theory Meeting

Tuesday, March 27 2012

On Saturday, March 31, 2012, Diana Vaman and UVa's Physics Department will play host to the Virginia and Maryland String and Particle Theory Meeting.

### UVa Researchers Featured in APS Synopses

Monday, March 19 2012

From APS Synopsis: Getting Under the Neutron Skin

Heavy nuclei are believed to have a neutron-rich skin on the surface, and the thickness of this skin may have important implications for the physics of neutron stars.

Now the Lead Radius Experiment (PREx) Collaboration reports, in Physical Review Letters, electron scattering experiments that yield the thickness of the neutron skin in the heavy nucleus lead-208. Their preliminary results show that the skin’s thickness is about 0.33 millionths of a nanometer.

### Cox Highlighted in Virginia Magazine

Monday, March 19 2012

Brad Cox comments upon the LHC's search for the Higgs boson.

For more:

### Bloomfield Makes Cents in Huffington Post

Wednesday, March 7 2012

Prof. Bloomfield considers pennies from heaven (AKA the Empire State Building):

'If it did strike you, it would feel like being flicked in the forehead — "but not even very hard," said Louis Bloomfield, a physicist at the University of Virginia. And he should know. He recently used wind tunnels and helium balloons to replicate the fall of pennies from skyscrapers.'

### UVa team and collaborators measure ultra-fast protons in nuclei

Wednesday, February 29 2012

The atomic nucleus is made of confined nucleons in constant motion dominated by their interactions with the mean field of the nucleus - that is the average potential generated the many body system. This mean field spawned motion is called the Fermi motion and is a function of the atomic number.

It is known for a long time that this picture of lumbering nucleons in a mean field is incomplete. The strong repulsive feature of the nucleon-nucleon (NN) interaction at short distances prevents nucleons from becoming close to each other and these short-range interactions generate highly energetic nucleons. A new Jefferson Lab experiment has quantified the effect and found that fully 25% of the protons in heavy nuclei move at velocities exceeding one quarter the speed of light!

This work is the product of the thesis experiment of former UVa graduate student Nadia Fomin who was advised by UVa Research Professor Donal Day. More can be read at
http://people.virginia.edu/~dbd/Annoucement/UltraFastNucleons.pdf

### 2012 Institute of Nuclear and Particle Physics Annual Lecture

Wednesday, February 29 2012

The 2012 Institute of Nuclear and Particle Physics Annual Lecture, which will be held in the Physics Department, Room 203, on Thursday, March 15, at 3:30 p.m.

The lecture will be delivered by Professor William Marciano, a prominent theoretical physicist at the U.S. Department of Energy’s Brookhaven National Laboratory.

For more, see:
http://www.phys.virginia.edu/Announcements/INPP/2012.pdf

### Dukes' NOvA Work Highlighted in A&S Magazine

Tuesday, December 20 2011

From the Fall 2011 Arts and Sciences Magazine, "Toward a New College":

"Without this asymmetry, without this slight abundance of matter over antimatter, there would be nothing," says Craig Dukes

### UVa CMS Team Highlighted for Higgs Search

Wednesday, December 14 2011

From The Daily Progress:

A team of scientists that includes a group from the University of Virginia may have seen a glimpse of a subatomic particle that, in theory, is the key to holding together everything from atoms to airplanes.

Scientific teams experimenting during the past two years at the Large Hadron Collider in Europe are reviewing data that could indicate the existence of the Higgs particle, a theoretical unit nicknamed “the God particle” that is believed to give mass to other subatomic particles.

More: http://www2.dailyprogress.com/news/2011/dec/13/scientists-including-uva-team-edge-closer-god-part-ar-1541986/
___________________________

From UVaToday:

"This is a very exciting time for those of us working at the LHC," said Brad Cox, a professor of physics in the University of Virginia's College of Arts & Sciences and principal investigator for U.Va.'s Compact Muon Solenoid Detector experiment at the Large Hadron Collider. "We are perhaps seeing the first evidence for the Higgs particle. However, we do not want to get ahead of ourselves. Statistically, what we are seeing could be a fluctuation of backgrounds, meaning there is still considerable uncertainty if what is observed is really the Higgs particle. However, what we see so far is exciting. By this time next year we should have conclusive evidence, pro or con, about the structure that we are seeing."

### Yohay Wins US LHC Users Organization Award

Monday, November 14 2011

Per Sridhara Dasu for the US LHC Users Organization Executive Committee:

The Young Scientist talks at the USLUO, especially the lightning round, was a grand success. Everyone liked the talks, and our NSF representative sent a special congratulatory message to the students and postdocs who presented at the USLUO Meeting.

The winners of the competition, chosen by the ranking determined by polling senior scientists attending the meeting are:

Sarah Heim (Michigan State),
Laura Jeanty (Harvard),
Jeff Klukas (Wisconsin),
Chad Suhr (NIU)
Rachel Yohay (Virginia)

These winners are invited to join the USLUO delegation that visits Washington in Spring 2012. The award covers their travel expenses.

We also wish to acknowledge the very high quality of talks especially from somewhat more experienced postdocs:
Bryan Dahmes (Minnesota), Sal Rappochio (Johns Hopkins), Wei Lei (MIT).

### UVa to Dedicate New Physical and Life Sciences Research Building

Tuesday, October 18 2011

From UVaToday:

October 17, 2011 — The College and Graduate School of Arts & Sciences at the University of Virginia will dedicate its new, state-of-the-art Physical and Life Sciences Research Building on Friday at 3 p.m.

The five-story, 100,000-square-foot building offers modern research laboratory space for more than two dozen faculty members and their research groups, and will house members of the biology, chemistry and physics departments. The building is also home to scientific equipment and facilities shared by research teams in the College and other parts of the University.

### Pocanic and Baessler Receive NSF MRI Funding

Monday, September 26 2011

Dinko Pocanic and Stefan Baessler, in collaboration with colleagues from Arizona State University and Oak Ridge National Lab, have received funding for the development of a spectrometer optimized for precise measurements of correlations in neutron beta decay. The recently approved National Science Foundation Major Research Instrumentation grant totals approximately $2.5M, of which$2.3M will go to UVa. Furthermore, the Department of Energy will provide an additional $2M to fund the balance of the equipment required to complete "Nab," the first experiment in the planned series of measurements. The spectrometer will be installed at the world's most powerful pulsed neutron source, the Spallation Neutron Source at the Oak Ridge National Lab in Tennessee. The spectrometer was designed by the Nab collaboration, at present a group of 27 scientists from 13 institutions, with design leadership provided by the UVa group. The goal of the collaboration is to measure the correlation between the neutrino and electron directions in the beta decay of the free neutron. This measurement will provide important input for the theory of the weak interaction. For example, the result will be used to search for hitherto unseen, hypothetical elementary particles that would cause the so-called scalar and tensor interactions. The spectrometer will be subsequently modified for use in follow-on measurements of spin correlations in neutron beta decay. Training of graduate and undergraduate students, as well as postdoctoral fellows, is one of the major goals of this collaborative research effort. More information can be found at http://nab.phys.virginia.edu ### Pfister Highlighted in Quantum Computing News Monday, September 26 2011 From Network World: "My work with optical fields has demonstrated good preliminary control over 60 qubit equivalents, which we call 'Qmodes' and has the potential to scale to thousands of Qmodes," Pfister says. "Each Qmode is a distinctly specified color of the electromagnetic field, but to develop a quantum computer, nearly hundreds to thousands of Qmodes are required." ### Louca, et al., Awarded NSF MIRT Monday, September 12 2011 Despina Louca, with her colleagues at UT Austin, received one of the three MIRT awards made by the National Science Foundation this year among high competition. The Materials Interdisciplinary Research Team (MIRT) grant, which was awarded for the first time this year and is managed by the Materials Research Science and Engineering Center program at NSF, recognizes teams that demonstrate a strong interdisciplinary research program. Six university faculty members from The University of Texas at Austin — whose expertise include physics, mechanical engineering, chemical engineering, and electrical and computer engineering — will work collaboratively on the grant with University of Virginia Professor Despina Louca, in the department of Physics. The nearly$3 million three-year grant from the NSF is to study materials that are vital to the development of a broad range of technologies, including everything from cell phones to large-scale energy storage.

Led by Professor Arumugam Manthiram, the research will team faculty and students from across disciplines. The goal of their research is to gain a profound fundamental understanding of the physics and chemistry involved in controlling the properties of transition-metal oxides, a complex class of materials essential for many modern technologies.

For more, see
http://www.engr.utexas.edu/news/7042-tminsfgrant

### Pfister Accomplishes Breakthrough Toward Quantum Computing

Friday, July 15 2011

From UVaToday:

Olivier Pfister, a professor of physics in the University of Virginia's College of Arts & Sciences, has just published findings in the journal Physical Review Letters demonstrating a breakthrough in the creation of massive numbers of entangled qubits, more precisely a multilevel variant thereof called Qmodes.

Entanglement dwells outside our day-to-day experience; imagine that two people, each tossing a coin on their own and keeping a record of the results, compared this data after a few coin tosses and found that they always had identical outcomes, even though each result, heads or tails, would still occur randomly from one toss to the next. Such correlations are now routinely observed between quantum systems in physics labs and form the operating core of a quantum computing processor.

Pfister and researchers in his lab used sophisticated lasers to engineer 15 groups of four entangled Qmodes each, for a total of 60 measurable Qmodes, the most ever created. They believe they may have created as many as 150 groups, or 600 Qmodes, but could measure only 60 with the techniques they used.

For the full story, see:
http://www.virginia.edu/uvatoday/newsRelease.php?id=15525

For more details, see the July 15, 2011, PRL article
http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.107.030505

### Wolf Instrumental in Creation of the Virginia Nanoelectronics Center

Wednesday, May 25 2011

From UVaToday:

The University of Virginia, in partnership with the College of William & Mary and Old Dominion University, has launched the Virginia Nanoelectronics Center, or ViNC, to advance research aimed at developing next-generation electronics.

"This new center is positioning Virginia at the heart of the development of a new nanoscale technology," said Stuart Wolf, director of nanoSTAR and ViNC. "This center could establish the commonwealth as the 'Oxide Hills' rather than a new 'Silicon Valley.'"

### Neu Awarded FEST Funding

Tuesday, May 24 2011

Christopher Neu has been named a Distinguished Young Investigator this year through the University of Virginia's Fund for Excellence in Science and Technology. Sponsored by the Office of the Vice President for Research, the fund - now in its seventh year - provides seed money for promising innovative research.

### Ninth Physics Department Research Poster Competition

Wednesday, May 11 2011

During the week of March 28 through April 1, 2011, the Physics department held a poster competition to highlight graduate student research. The competition was open to all students who had entered their third year in the graduate program and beyond.

### Gallagher receives 2010-11 Distinguished Scientist Award

Wednesday, April 20 2011

Three pre-eminent researchers – Thomas F. Gallagher, Patrice G. Guyenet and Kodi S. Ravichandran – have been chosen to receive 2010-11 Distinguished Scientist Awards from the University of Virginia.

### Wu and Yohay Honored

Wednesday, March 30 2011

Chaolun Wu has been awarded a dissertation year fellowship
and Rachel Yohay has been selected from UVa this year to be nominated
for the ARCS Foundation. ARCS stands for Achievement Rewards for College
Scientists and only 1 nomination is allowed out of UVa for the $15,000 scholarship for 2011-12. The focus of this fellowship is on the doctoral student's research that “could feasibly serve as a breakthrough technology or discovery… of advancing our country’s global technological competitiveness.” ### Ninth Physics Department Research Poster Competition Tuesday, March 8 2011 During the week of March 28 through April 1, 2011, the Physics department will hold a poster competition to highlight graduate student research. The competition will be open to all students who have entered their third year in the graduate program and beyond. Senior students are particularly encouraged to participate by placing their posters in the main hallway, showcasing their works. The intent of the competition is twofold: 1) Increase awareness within the department of the variety of research topics currently under investigation by students, and 2) Recognize student excellence in research and presentation. Any student who has started a program of research should feel free to enter. We strongly encourage all eligible students to take the time to prepare a poster. Please notify Dawn in the main office by March 23 if you decide to enter the competition by providing a title and author list. This will give us an accurate count on the number of boards we would need. Prizes: Participating students will place their posters in the main hallway of the physics building sometime between Monday, March 28 and Tuesday, March 29. The posters will be reviewed by members of the graduate program committee between Wednesday, March 30 and Thursday, March 31. Based on the poster review, the committee will award four students with the following prizes: 1st place:$1,500
2nd place: $1,000 3rd place:$ 750
4th place: \$ 500

### Bloomfield wins Jefferson Scholars Faculty Prize

Thursday, February 17 2011

From UVaToday:

The Jefferson Scholars Foundation at the University of Virginia has awarded Louis A. Bloomfield its 2011 Faculty Prize. Bloomfield, a physics professor in the College of Arts & Sciences, has been a member of the faculty since 1985.

"Professor Bloomfield's passion and commitment to his students have made him a powerful force at the University. His long list of accomplishments is unusually impressive, and he is a most worthy recipient of the Faculty Prize," Jimmy Wright, president of the Jefferson Scholars Foundation, said.

UVaToday Story:
http://www.virginia.edu/uvatoday/newsRelease.php?id=13933

Jefferson Scholars Foundation Notice:
http://www.jeffersonscholars.org/2011/01/jefferson-scholars-foundation-awards-faculty-prize-to-louis-a-bloomfield/

### Congratulations to Kelsie Betsch and Jirakan Nunkaew

Tuesday, February 1 2011

Congratulations to Kelsie Betsch and Jirakan Nunkaew on receiving an Award for Excellence in Scholarship in the Sciences and Engineering!

This award recognizes excellence in original scholarship by PhD students at the University and rewards those students that bring recognition to graduate programs at UVA through their intellect, dedication, creativity and passion.

Elizabeth Orser
Assistant to the Chair
University of Virginia
Department of Physics
382 McCormick Road
PO Box 400714
Charlottesville, VA 22904-4714
(Ph) 434-924-6791
(Fax) 434-924-4576

### Poon Group's Work on Thermoelectric Materials Recognized

Thursday, January 27 2011

Researchers in the US, including U.Va., have unveiled a new high-temperature material that is 60% better at converting heat to electricity than comparable "thermoelectrics". The material, which is a nanocomposite, could potentially be used to boost the fuel efficiency of cars by recovering energy from the vehicle's exhaust heat.

### Memorial Resolution for Klaus Ziock

Friday, December 10 2010

Memorial Resolution for Klaus O. H. Ziock, read to the Faculty of Arts and Sciences on December 9, 2010, by Prof. Ralph Minehart:

Klaus Otto Heinrich Ziock, an experimental physicist and Physics Professor Emeritus, died on November 5, 2010, from complications following abdominal surgery. He leaves his wife of 58 years, Ursula (Uschi) Ziock, four sons, Hans-Joachim, Klaus-Peter, Robert, Michael, and their families including two grandchildren and one great grandchild.

Klaus was born on February 4, 1925 in Herchen, Germany. Following service in the German army during World War II, he received a Dipl. Phys. in 1949 from the University of Bonn, Germany. From 1950 to 1954 he worked as a physicist in the Research and Development Department of E. Leybold's Nachfolger in Koeln, Germany. During this period he published several papers on vacuum technology and was awarded six patents for vacuum devices. He returned to the University of Bonn to earn his advanced degree under the direction of Wolfgang Paul, who won the 1989 Nobel Prize in Physics. He received the degree of Rerum Naturalium Doctor in 1956, and remained for two more years at Bonn as an Assistant in Physics. From 1958 to 1960 he was employed as a Research Associate at Yale University, working with Professor Vernon Hughes. He served on the Yale faculty as an Assistant Professor of Physics from 1960 to 1962. In 1962 he joined the University of Virginia as an Associate Professor, serving as the Acting Director of the newly formed Virginia Associated Research Center. He spent a year as a Visiting Scientist at CERN from 1969 to 1970. He was promoted to Professor of Physics in 1972. After receiving an American Senior Scientist Award from the Alexander von Humboldt Foundation of Germany in 1977, he spent a year at the Swiss Institute for Nuclear Science. He was a member of the American Physical Society.

His pre-doctoral work centered around the study of atomic spectra with his dissertation on the measurement of the oscillator strength of the 3,720 Angstrom iron resonance line. His association with Professor V. Hughes at Yale University culminated in the successful production of muonium and verification of its existence at the Columbia University Nevis Cyclotron. Muonium, which consists of a bound positive muon and an electron, has since played a major role in precision fundamental measurements in quantum electrodynamics. Continued studies of fundamental properties of muons and pions were an important thread in the remainder of his career. At the University of Virginia he played a seminal role in the creation of a highly successful Medium Energy Experimental Group in the Physics Department. At the Space Radiation Effects Laboratory he instituted a program to study nuclear properties with pion and muon capture. In 1970 this program was transferred to the Meson Physics Facility at Los Alamos, NM, where he carried out a long series of experiments until his retirement in 1995. His last work at Los Alamos was a major contribution to the apparatus for the MEGA experiment, a large-scale program to search for the decay of a muon to an electron and a gamma ray. This decay is forbidden by the so-called Standard Model, but predicted to occur with extremely low probability by some modern theoretical hypotheses. Following his sabbatical year at the Swiss Institute for Nuclear Science he continued an active program there through experiments on the properties of muons and pi mesons and their interaction with nuclei. He also conducted in his Charlottesville laboratory an extensive search for fractionally charged particles (quarks) predicted by the Standard Model using magnetic levitation of 30 microgram steel spheres.

Klaus was an excellent and devoted teacher in the classroom and the laboratory. He was the Ph.D. adviser for 15 graduate students. He wrote an undergraduate textbook, Basic Quantum Mechanics, published by John Wiley and Sons in 1969. The book was greatly enlivened by his amusing and instructive cartoons and by his unique brand of humor.

Klaus's devotion to rigorous experimental research was matched by his devotion to his close-knit family, who enjoyed a rich life together. Not only Klaus, but his entire family profited from his European sabbaticals and summers in New Mexico. The summers included extensive exploration of the geology and Native American life in the Southwest. His sons have all gone on to lead successful lives, with the elder two following in his footsteps as experimental physicists. After retirement from U.Va. he and Uschi moved into a house at the foot of Sandia Mountain in Albuquerque, NM, which provided an excellent base for continued exploration and enjoyment of the American Southwest. His love of travel was also gratified by frequent ocean cruises to the Caribbean and farther afield. As a friend and colleague, he was always honest, aboveboard, and willing to provide help whenever he could. His friends around the world will miss him.

### Dukes' NOvA Work Highlighted in UVaToday

Wednesday, December 8 2010

One of the great and fundamental questions in physics is: Why is there matter? Physicists theorize that in the instant after the Big Bang created the makings of the universe, there were nearly equal amounts of matter and anti-matter, protons and anti-protons, neutrons and anti-neutrons. They should have annihilated each other, resulting in ... nothing.

Instead, for some reason, more matter was created than anti-matter, and the universe was born.

"Without this asymmetry that occurred, without this slight abundance of matter over anti-matter, there would be nothing," said Craig Dukes, a physicist in the High Energy Physics Laboratory in the University of Virginia's College of Arts & Sciences. "The universe would be a boring place. There would be no stars, no planets, no people, no books. There would be no filet mignon."

### Lamacraft named a Cottrell Scholar

Monday, November 22 2010

Dear Colleagues,

I have just received word that Austen Lamacraft has been named a Cottrell Scholar by the Research Corporation for Science Advancement. This is an honor for Austen and the announcement of the award was made to the UVa President's Office. Public recognition of this award will be announced in the journal Science.

Please join me to congratulate Austen.

Cheers,
Joe

### HEP Group Seeks New Physics at the LHC

Thursday, November 18 2010

As reported in UVaToday:

"International teams of scientists working on an array of high-energy physics research projects with the Large Hadron Collider near Geneva – including several physicists from the University of Virginia's College of Arts & Sciences – are beginning a new set of experiments this month after having completed a seven-month mission colliding protons at the highest levels of energy ever accomplished."

### Quark Momentum Distributions Beyond the Free Nucleon Limit

Wednesday, November 17 2010

This paper, coauthored by Nadia Fomin, a former UVa graduate student (and now a research associate at the University of Tennessee), Donal Day (her advisor at UVa), John Arrington of Argonne National Lab and others, provides for the first time a direct connection between inclusive electron-nucleus data taken at Jefferson Lab's momentum transfers with data at momentum transfers 10 times higher. This connection is important because it allows an examination of the quark momentum distributions at momenta forbidden in the free nucleon. These data are snapshots of the behavior of quarks under certain extreme conditions possible only inside the nucleus - rare fluctuations in which nucleons overlap, generating very high densities and violent reactions. Theories that attempt to describe the dynamics by which a quark obtains such large momenta - be it parton recombination or the presence of pre-existing exotic 6 or 9-quark states, or some combination with conventional nuclear physics - will find a testing ground here.

### Fishbane Defends Einstein

Monday, November 15 2010

### Lee Group Paper a J. Phys. Soc. Jpn TOP 20

Monday, November 15 2010

The paper "Investigation of the Spin-Glass Regime between the Antiferromagnetic and Superconducting Phases in Fe1+ySexTe1-x" was one of the top twenty papers downloaded from the Journal of the Physical Society of Japan's website.

### Lee Highlighted in APS News

Wednesday, October 13 2010

In the October 2010 APS News:

"To me, this challenges the integrity of science... They say they
reached these conclusions that have enormous consequences on the
political and international stage. As a scientist and scholar, I felt
it was my duty to check their conclusion."

Seung-Hun Lee, University of Virginia, on why he disagrees with the
South Korean government's assessment that a North Korean torpedo sank
the battleship Cheonan in March, Time, August 18, 2010.

Time Magazine Article:
http://www.time.com/time/world/article/0,8599,2011507,00.html

### Smola Wins Presidential Award for Excellence in Mathematics and Science Teaching

Friday, October 8 2010

Raymond Smola, a 2008 graduate of our Master of Arts in Physics Education
program, recently was one of the winners for the 2010 Presidential Award for
Excellence in Teaching Mathematics and Science. This is the highest award that
a K-12 teacher can receive. The awards are announced by the White House, and
the winners visit the White House to receive their awards. Please see the UVa
announcement at http://uvatoday.org/blog/?p=1831

Smola teaches at Heidelberg High School in Heidelberg, Germany for the DOD
school. He is a typical MAPE teacher. He has a BS in chemistry, but wanted to
teach physics as well, so he spent two summers with us in 2006 and 2007 in the
MAPE program.

For more information about the MAPE program at UVa, see:

http://galileo.phys.virginia.edu/outreach/ProfessionalDevelopment/mape/home.html

### Breaking through to the other side

Tuesday, August 31 2010

The highest temperature superconductivity has been found when a
small fraction of electrons was added or removed from Mott
insulators where strong electron-electron repulsion prevents
electrons from moving freely. To dissect a Mott insulator and
examine whether it contains the seed to superconductivity, it would
be helpful to study what happens when an extremely small number of
electrons are either added or removed in a single Mott insulating
material. Recently, an international team composed of Yoichi Ando's
group at Osaka University, Seung-Hun Lee's group at University of
Virginia, and Kazu Yamada's group at Tohoku University, has
discovered such a system. The ambipolar cuprate (YLBLCO) provides
continuous access to both electron- and hole-doped regimes in a
single material, simply by altering its oxygen composition. Their
results revealed a marked difference in properties of electron- and
hole-doped regimes. Understanding these differences may hold
important clues to the origin of superconductivity. Future work on
this remarkable material should help to reach the understanding. The
work has been published in Nature Physics, August 2010 [1], and was
featured by a News and Views article in Nature Physics [2].

[1] K. Segawa et al., Nature Physics 6, 579-583 (2010).

[2] J. Orenstein and A. Vishwanath, Nature Physics 6, 566-567 (2010).

### Invitation - Deaver Retirement

Wednesday, April 28 2010

Honoring 45 years of service in the UVA Physics Department . . .

A Retirement Symposium and Reception Celebration
for
Bascom Deaver
on
May 12, 2010 at 1:00pm
Room 204, Physics Bldg

Our colleague Bascom Deaver will be retiring this summer. In celebrating Bascom's 45 years of service to the Physics Department and University, as well as his scientific and technological contributions to superconductivity and devices, this symposium is being held in his honor.

Symposium Co-chairs: Joe Poon (Physics), Bobby Weikle (Electrical Engineering)

1:00pm - 1:05pm Brief introduction

1:05pm - 1:30pm Professor Allen Goldman, University of Minnesota
"The Impact of Flux Quantization on the Understanding of Superconductivity"

1:30pm - 1:55pm Dr. Bill Goodman, Applied Physics systems
"TBA"

1:55pm - 2:20pm Professor Stuart Wolf, University of Virginia
"Trends in Superconducting Electronics - From the Future to the Past"

2:20pm - 2:30pm Coffee Break

2:30pm - 2:55pm Dr. Tom Crowe, Virginia Diodes
"Schottky Diode Based Receivers and Sources for CRR and other Applications"

2:55pm - 3:20pm Dr. Al Wootten, National Radio Astronomy Observatory
"ALMA: The March to Early Science"
3:20pm - 3:55pm Professor Robert Mattauch, Professor of Electrical Engineering Emeritus
"Solid State Device Work between UVa's Engineering & Physics, The Early Days"
4:30pm - 7:00pm Reception at the Colonnade Club (Please RSVP to eko5r@virginia.edu )

We are looking forward to having you join us to celebrate this special occasion.