Woowon Kang from the University of Chicago- "Experimental Study of Non-Abelian Statistics in the Fractional Quantum Hall Effect"

Nov 22, 2010, 1:15 pm6:00 pm
PCTS Seminar Room


Event Description
Topological phases of matter, apart from being a fundamental phenomenon in quantum physics, has a potential application in fault tolerant quantum computation. The fractional quantum Hall effect to date is the most clearly established example of a topological phase. Topological phases are notable for possessing exotic particles as elementary excitations. Non-Abelian braiding statistics have been postulated in the fractional quantum Hall states found at filling factors 5/2 and 12/5. The preferred approach of studying quasiparticle statistics is through quantum interferometry experiments. However, unambiguous detection of anyonic quasiparticles remains a challenge. In this talk I will describe our effort to probe the quasiparticle statistics of the 5/2 state and to demonstrate non-Abelian entanglement through study of current fluctuations.