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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-221@lptms.universite-paris-saclay.fr
DTSTART:20140114T110000Z
DTEND:20140114T120000Z
DTSTAMP:20131218T134439Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-jean-marie-stephan/
SUMMARY:Séminaire du LPTMS: Jean-Marie Stephan - LPTMS\, salle 201\, 2ème
  étage\, Bât 100\, Campus d'Orsay - 14 Jan 14 11:00
DESCRIPTION:Entropy and Mutual information in low-dimensional classical and
  quantum critical systems\nJean-Marie Stephan\, University of Virginia\nIn
  studies of new and exotic phases of quantum matter\, the Renyi entangleme
 nt entropy has established itself as an important resource. For example it
  is universal at one-dimensional quantum critical points: the leading term
  can be used to extract the central charge c of the underlying conformal f
 ield theory\, and thus identify the universality class.\nIn this talk I wi
 ll show how an analogous quantity defined for classical systems\, the Reny
 i Mutual Information (RMI)\, can be used to access universality classes in
  2d. In particular for a rectangle cut into two rectangles\, the shape dep
 endence of the RMI can be computed exactly and is proportional to c. This 
 makes it possible to extract c from (transfer-matrix) Monte Carlo simulati
 ons.I will also discuss how this Mutual information is related to the enta
 nglement entropy of certain Resonating valence bond states in 2d\, as well
  as other basis-dependent entropies in 1d quantum systems.  Reference: arX
 iv:1312.3954
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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