Atomic Physics Seminars This Term

Atomic
Monday, February 1, 2021
4:00 PM
Physics Building, Room TBA
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RESERVED
Atomic
Monday, February 15, 2021
4:00 PM
Online, Room via Zoom
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Available
Join Zoom Meeting:
https://virginia.zoom.us/j/94574586570
Meeting ID: 945 7458 6570
Password: 308624

Monday, February 22, 2021
4:00 PM
Online, Room via Zoom
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"Quantum state engineering with photon-number-resolved detection"


Miller Eaton , University of Virginia - Department of Physics
[Host: Olivier Pfister]
ABSTRACT:

Quantum information science promises to hold substantial advantages over classical information by allowing for secure communication, measurement precision below standard limits, and an exponential increase in certain computational problems. Although there have been several recent advances, such as the claims at quantum supremacy with discrete quantum computation (QC), many challenges still remain. One large obstacle is the prevention of decoherence in large entangled systems, which leads to a scalability problem in qubit-based QC. The scalability problem can be solved with cluster states using continuous-variable (CV) quantum-optics, but this comes with its own difficulties. In order to achieve a quantum advantage and allow for error correction with CV systems, it is necessary to include quantum states with non-Gaussian distribution functions.  In this talk, I will discuss several experimentally accessible ways one can generate useful non-Gaussian states with photon-number-resolved detection. Some of these states are desirable for CVQC while others show potential for Heisenberg-limited metrology. I will then introduce our method of efficient quantum state characterization utilizing the photon-number-resolving measurement capabilities in our lab.

Atomic
Monday, March 1, 2021
4:00 PM
Physics Building, Room TBA
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RESERVED
Atomic
Monday, March 8, 2021
4:00 PM
Physics Building, Room TBA
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Available
Atomic
Monday, March 22, 2021
9:00 AM
via Zoom, Room via Zoom
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"TBA"


Takeshi Fukuhara , RIKEN, Japan
[Host: Peter Schauss]
ABSTRACT:

TBA

Atomic
Monday, March 29, 2021
4:00 PM
Physics Building, Room TBA
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Available
TBA


Monday, April 5, 2021
4:00 PM
Online, Room via Zoom
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"Quantum optical frequency comb on a chip "


Professor Xu Yi , University of Virginia - ECE and Physics
[Host: Peter Schauss]
ABSTRACT:

Scalability is the central challenge in universal quantum computing, which has long established revolutionary premises, such as exponential speedup of difficult to near-impossible computations. A promising platform towards scalable quantum computing is the quantum optical frequency comb, which leverages optical frequency multiplexing and produces thousands of unconditional EPR entanglement in a single oscillator. In this talk, I will present our recent work to miniaturize the quantum optical frequency comb to a photonic chip for the first time. Our work brings the power of microfabrication to quantum optical applications, and could enable low cost mass-production, which promises additional scalability. I will also briefly discuss the roadmap and the challenges towards scalable quantum computing with integrated photonic frequency combs. 

 

Atomic
Monday, April 5, 2021
4:00 PM
Physics Building, Room TBA
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RESERVED
Atomic
Monday, April 12, 2021
4:00 PM
Physics Building, Room TBA
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Available
Atomic
Monday, April 19, 2021
4:00 PM
Online, Room via Zoom
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Brian J. DeSalvo , Indiana University Bloomington
[Host: Peter Schauss]
ABSTRACT:

TBA

Atomic
Monday, April 26, 2021
4:00 PM
Online, Room via Zoom
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Available

To add a speaker, send an email to ps5nw@Virginia.EDU Include the seminar type (e.g. Atomic Physics Seminars), date, name of the speaker, title of talk, and an abstract (if available). [Please send a copy of the email to phys-speakers@Virginia.EDU.]