Tel Aviv University


Tel Aviv University
Physics Colloquium

Academic Year  2011 - 2012


The colloquium is held at Melamed Hall (Room 6) in the Shenkar Physics Building, every Sunday at 16:10. Light refreshments are served outside Melamed Hall at 15:50. 

 

January 22, 2012

"What are Majoranas and where to find them"

Prof. Yuval Oreg
Department of Condensed Matter Physics, Weizmann Institute


  Topological quantum computation provides an elegant way around decoherence, as one encodes quantum information in a nonlocal fashion that the environment finds difficult to corrupt. Zero energy Majorana Fermion states (Majoranas for short) emerges as a key concept for a realization of nonlocal encoding. In this talk we will discuss what Majoranas are, what makes them nonlocal, and how one may create and manipulate them. In particular we will discuss recipes for driving semiconducting wires into a topological phase supporting Majoranas. In this setting Majoarans can be transported, created, and fused by applying locally tunable gates to the wire. More importantly, we will show that networks of such wires allow braiding of Majorana fermions and that they exhibit non-Abelian statistics. If time permits we will discuss possible ways to experimentally detect Majoranas.  

Host: Prof. Ron Lifshitz, x5145
 
Fall 2011 Schedule

For more information or for directions to Melamed Hall please contact:
Chava Balson  03-6408636

To suggest potential speakers or register feedback contact: Ron Lifshitz  03-6405145.


Sponsored by:   The Raymond and Beverly Sackler School of Physics & Astronomy, The Faculty of Exact Sciences, Tel Aviv University.