Sankar Das Sarma
University of Maryland, USA
|Topic :||Non-Abelian Anyons and Topological Quantum Computation|
|Date :||December 28, 2007|
|Time :||3:30 PM|
|Venue :||C V Raman Hall, IACS|
All are cordially invited to attend
Abstract: Topological quantum computation has recently emerged as an exciting way of carrying out fault tolerant quantum computation using non-Abelian quasiparticle braiding in topological materials. I will discuss a number of physical systems, e.g. fractional quantum Hall states, chiral p-wave superconductors, p-wave cold atom superfluids, suitably designed optical lattices, rotating BEC systems, etc. where the possibility for doing topological quantum computation has been discussed in the recent literature. I will try to provide a perspective on how realistic such ideas are likely to be and what the (very difficult) physics issues are which would have to be addressed before laboratory topological quantum computation can happen. I will also provide an introductory review of the basic ideas underlying quantum topological matter, Abelian and non-Abelian anyons, fractional quantum Hall effect, and quasiparticle braiding. The subject matter of this lecture brings together quantum computation, topological quantum field theory, materials science, conformal field theory, topology, string theory, Jones polynomials, and quantum Hall effects. Basic concepts will be emphasized in the lecture.
About the Speaker: Sankar Das Sarma is a Distinguished University Professor
at the University of Maryland where he also serves as the Director of the Condensed
Matter Theory Center at the Department of Physics. He is a theoretical condensed
matter physicist with wide expertise in many body theory and strong correlation
physics. Professor Das Sarma is internationally well-known for his work on electronic
properties of low dimensional systems, quantum Hall effects, spintronics, nonequlibrium
statistical mechanics, and quantum computation. His work has been highly cited
in the literature, and he is one of the ISI Highly-Cited Researchers. He received
his Ph.D. from Brown University and has been a professor at the University of
Maryland since 1982. He has earlier delivered the Rippon Lecture and the C.K.
Majumdar Memorial Lecture at IACS.