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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-350@lptms.universite-paris-saclay.fr
DTSTART:20150505T110000Z
DTEND:20150505T120000Z
DTSTAMP:20150421T081416Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-antoine-sterdyniak/
SUMMARY:Séminaire du LPTMS: Antoine Sterdyniak - LPTMS\, salle 201\, 2ème
  étage\, Bât 100\, Campus d'Orsay - 5 Mai 15 11:00
DESCRIPTION:Realization of strongly interacting topological phases on latti
 ces\nAntoine Sterdyniak\, Universität Innsbruck\nWhile fractional quantum
  Hall effect (FQHE) was realized experimentally thirty years ago in semico
 nductor heterostructures\, strongly interacting chiral topological phases 
 are still at the center of an important research effort\, both as they ser
 ve as building blocks of more exotic phases such as fractional topological
  insulators and as a realization outside of semi-conductor physics is stil
 l missing. In this talk\, I will describe realizations of these phases in 
 cold atoms gases and in frustrated spins systems. I will first introduce o
 ptical flux lattices\, which are continuous models that exhibit topologica
 l flat bands with a tunable Chern number and host fractional states beyond
  the FQHE. Then\, I will focus on chiral spin liquids whose emergence on t
 he kagomé lattice using local Hamiltonians has been shown very recently. 
 Unlike itinerant particle systems where FQHE can be understood as a conseq
 uence of interactions in a partially filled topological band\, I will show
  that such a picture does not hold for this chiral spin liquid. However\, 
 it can be described by model states obtained using a slave boson approach.
CATEGORIES:seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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