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SUMMARY:Statistical Topological Insulators - Dr Jonathan Edge\, Leiden Uni
 versity
DTSTART:20130207T141500Z
DTEND:20130207T154500Z
UID:TALK42422@talks.cam.ac.uk
CONTACT:Gareth Conduit
DESCRIPTION:We define a class of insulators with gapless surface states pr
 otected from localization due to the statistical properties of a disordere
 d ensemble\, namely due to the ensemble's invariance under a certain symme
 try. We show that these insulators are topological\, and are protected by 
 a Z_2 invariant. Finally\, we prove that every topological insulator gives
  rise to an infinite number of classes of statistical topological insulato
 rs in higher dimensions. Our conclusions are confirmed by numerical simula
 tions.\n
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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