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SUMMARY:Time Evolution of Entanglement Entropy - Matthew Roberts (New York
  University)
DTSTART:20120426T120000Z
DTEND:20120426T130000Z
UID:TALK37830@talks.cam.ac.uk
CONTACT:Sungjay Lee
DESCRIPTION:We calculate the time evolution of the entanglement entropy in
  a 1+1 CFT with a holographic dual when there is a localized left-moving p
 acket of energy density. We find the gravity result agrees with a field th
 eory result derived from the transformation properties of Renyi entropy. W
 e are able to reproduce behavior which qualitatively agrees with CFT resul
 ts of entanglement entropy of a system subjected to a local quench. In doi
 ng so we construct a finite diffeomorphism which tales three-dimensional a
 nti-de Sitter space in the Poincare patch to a general solution\, generali
 zing the diffeomorphism that takes the Poincare patch a BTZ black hole. We
  briefly discuss the calculation of correlation functions in these backgro
 unds and give results at large operator dimension.
LOCATION:Potter Room (first floor\, Pav. B)
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