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SUMMARY:Gabor Sarosi (CERN)
DTSTART:20220628T193000Z
DTEND:20220628T203000Z
DTSTAMP:20260423T024552Z
UID:HET/34
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HET/34/">Com
 ments on the volume of the black hole interior in 2d gravity</a>\nby Gabor
  Sarosi (CERN) as part of Purdue HET\n\n\nAbstract\nThe volume of the inte
 rior of a two-sided eternal black hole classically grows forever. I will d
 erive a microscopic formula for this volume in JT gravity by summing the n
 on-perturbative contribution of higher topologies. The non-perturbative co
 rrections lead to the saturation of the volume of the interior at times ex
 ponential in the entropy of the black hole. I will connect the microscopic
  formula for the volume with properties of a time averaged density matrix\
 , in particular with its second Renyi entropy\, which I argue to measure t
 he number of nearly orthogonal states visited by time evolution. I will di
 scuss various problems with this interpretation.\n
LOCATION:https://researchseminars.org/talk/HET/34/
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