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BEGIN:VEVENT
UID:0-846@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20230110T110000
DTEND;TZID=Europe/Paris:20230110T120000
DTSTAMP:20230106T134731Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-andrei-rotaru-lpthe/
SUMMARY:Séminaire du LPTMS : Andrei Rotaru (LPTHE) - Salle des séminaires
  du FAST et du LPTMS\, bâtiment Pascal n°530 - 10 Jan 23 11:00
DESCRIPTION:New results for Rényi entanglement entropies in one-dimensiona
 l quantum\ncritical systems with boundaries\nAndrei Rotaru (LPTHE)\n\nHybr
 id: onsite seminar + zoom.\nhttps://cnrs.zoom.us/j/94693401724?pwd=UUF5b2p
 JOHE1ZmhSWGpGa2NrL09iUT09\n\n\n\nEntanglement measures have turned out to 
 be a powerful probe into the physics of 1D quantum critical systems.\nMost
  known exact results address the entanglement in critical quantum systems 
 with periodic BC.  For open systems\, there are results for the Rényi ent
 ropies and other entanglement measures of an interval touching one of two 
 identical boundaries with the rest of the system. However\, for more gener
 ic bipartitions or mixed boundaries\, few exact calculations have been com
 pleted.\nIn this talk\, we will present new results for the Rényi entropi
 es of an interval in systems with open boundaries\, and sketch\, in a peda
 gogical manner\, the key ideas of their computation through 2D CFT methods
 .  This will be supplemented by comparison with spin chain numerics and a 
 discussion of finite-size effects.  Partly based on arXiv:2112.01929.
CATEGORIES:seminars
LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53
 0\, rue André Riviere\, Orsay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\
 , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST 
 et du LPTMS\, bâtiment Pascal n°530:geo:0,0
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DTSTART:20221030T020000
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