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SUMMARY:Hong Liu (MIT)
DTSTART:20200716T190000Z
DTEND:20200716T210000Z
DTSTAMP:20260423T035710Z
UID:IFQ/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/IFQ/6/">Enta
 nglement entropies of equilibrated pure states and replica wormholes</a>\n
 by Hong Liu (MIT) as part of It from Qubit\n\n\nAbstract\nConsider a quant
 um many-body system initially in a far-from-equilibrium pure state.\n\nIf 
 the system is non-integrable\, the state should approach equilibrium after
  some time.\n\nWe develop an approximation to calculate quantum informatio
 nal properties of such an "equilibrated pure state.”  Applied to gravity
  systems\, the approximation leads to a derivation of replica wormholes di
 scussed recently in the context of Page curves for black holes\, elucidati
 ng their mathematical origin\,  physical interpretation\, and why they lea
 d to answers which are consistent with unitarity.\n\nBased on work to appe
 ar with Shreya Vardhan.\n
LOCATION:https://researchseminars.org/talk/IFQ/6/
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