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SUMMARY:James Sully (String Theory Group\, Department of Physics and Astro
 nomy\, University of British Columbia\, Vancouver\, British Columbia\, Can
 ada)
DTSTART:20200706T150000Z
DTEND:20200706T173000Z
DTSTAMP:20260423T011056Z
UID:QASTM/18
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QASTM/18/">E
 igenstate thermalization and disorder averaging in gravity</a>\nby James S
 ully (String Theory Group\, Department of Physics and Astronomy\, Universi
 ty of British Columbia\, Vancouver\, British Columbia\, Canada) as part of
  Quantum Aspects of Space-Time and Matter\n\n\nAbstract\nIt has long been 
 believed that progress in understanding the black hole information paradox
  would require coming to terms with microscopic details of quantum gravity
 ---something beyond the reach of semiclassical effective field theory. In 
 that light\, one of the most surprising discoveries of the last year has b
 een that signature features of the unitary evaporation of black holes can 
 already be seen within effective field theory\, albeit with the inclusion 
 of 'euclidean wormholes'. However\, these novel contributions are best und
 erstood when the gravitational theory is not a single microscopic theory\,
  but an average over many different theories. To save unitarity must we th
 en simultaneously throw it away? I will explain how the same story can be 
 recovered within a single microscopic theory by thinking carefully about t
 he right effective theory for finite-lifetime observers.\n
LOCATION:https://researchseminars.org/talk/QASTM/18/
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