"NonAbelian anyons: New particles for less than a billion"Kirill Shtengel , UC Riverside [Host: Israel Klich]
ABSTRACT:
The notion of quantum topological order has been a subject of much interest recently, in part because it falls outside of the wellestablished Landau paradigm whereby states of matter are classified according to their broken symmetries. Topologically ordered phases cannot be described by any local order parameter, yet they have many peculiar properties clearly distinguishing them from the conventionally disordered phases. For example, in two dimensions, they may support anyonic excitations  the quasiparticles that are neither bosons nor fermions. Moreover, anyons with *nonAbelian* braiding statistics are expected to occur, particularly in the fractional quantum Hall regime.
Interesting in their own right, such systems may also provide a platform for topological quantum computation.
Interferometric experiments are likely to play a crucial role in both determining the nonAbelian nature of these states and in their potential applications for quantum computing. I will discuss solid state interferometers designed to detect such nonAbelian quasiparticle statistics. Should these experiments succeed, such interferometers could also become key elements in a topological quantum computer.

Colloquium Friday, April 10, 2009 4:00 PM Physics Building, Room 204 Note special time. Note special room. 
To add a speaker, send an email to physspeakers@Virginia.EDU. Please include the seminar type (e.g. Colloquia), date, name of the speaker, title of talk, and an abstract (if available).