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SUMMARY:From Topological Insulators to Majorana Fermions - Prof. Charles K
 ane\, University of Pennsylvania
DTSTART:20121023T131500Z
DTEND:20121023T141500Z
UID:TALK40257@talks.cam.ac.uk
CONTACT:Dr G Moller
DESCRIPTION:A topological insulator is a material that is an insulator on 
 its\ninterior\, but has special conducting states on its surface.  These s
 urface\nstates are unlike any other known two dimensional conductor. They 
 are\ncharacterized by a unique Dirac type dispersion relation and are prot
 ected\nby a topological property of material's underlying electronic struc
 ture.\nIn this talk we will review the theoretical and experimental advanc
 es that\nopened the topological insulator field and discuss the related ph
 enomena\nof topological superconductivity\, in which the protected boundar
 y states\nare Majorana fermions.  We will discuss prospects for observing 
 Majorana\nfermion states using Josephson junction devices that combine top
 ological\ninsulators with superconductivity.\n\nPlease note the unusual ti
 me and location.
LOCATION:Mott Seminar Room\, Cavendish Laboratory
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