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R. G. Herb Condensed Matter Seminar
Probing non-Abelian statistics with quantum Hall interferometry
Date: Tuesday, October 5th
Time: 10:00 am
Place: 5310 Chamberlin
Speaker: Kirill Shtengel, University of California-Riverside
Abstract: States of matter are conventionally classified according to broken symmetries. Topologically ordered phases fall outside of this paradigm: with no local order parameter, they nevertheless have many peculiar properties setting them apart from disordered phases. In 2D, such phases may support anyons - quasiparticles that are neither bosons nor fermions. Moreover, anyons with non-Abelian statistics can occur, particularly in the fractional quantum Hall regime. In this talk, I will focus on solid state interferometers designed to detect such exotic statistics. I will discuss recent experiments in the the quantum Hall regime at 5/2 filling where the evidence for the existence of non-Abelian anyons may have in fact been observed for the first time. I will also mention potential applications of such interferometeric schemes for topological quantum computation.
Host: Andrey Chubukov & Robert Joynt
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