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SUMMARY:Hong Liu (MIT)
DTSTART:20200716T190000Z
DTEND:20200716T210000Z
DTSTAMP:20260404T165313Z
UID:IFQ/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/IFQ/6
 /">Entanglement entropies of equilibrated pure states and replica wormhole
 s</a>\nby Hong Liu (MIT) as part of It from Qubit\n\n\nAbstract\nConsider 
 a quantum many-body system initially in a far-from-equilibrium pure state.
 \n\nIf the system is non-integrable\, the state should approach equilibriu
 m after some time.\n\nWe develop an approximation to calculate quantum inf
 ormational properties of such an "equilibrated pure state.”  Applied to 
 gravity systems\, the approximation leads to a derivation of replica wormh
 oles discussed recently in the context of Page curves for black holes\, el
 ucidating their mathematical origin\,  physical interpretation\, and why t
 hey lead to answers which are consistent with unitarity.\n\nBased on work 
 to appear with Shreya Vardhan.\n
LOCATION:https://stable.researchseminars.org/talk/IFQ/6/
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