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SUMMARY:Scott Collier (Princeton)
DTSTART:20221102T163000Z
DTEND:20221102T180000Z
DTSTAMP:20260423T041749Z
UID:UKYhepth/48
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/UKYhepth/48/
 ">Emergent Averaging in Large-$N$ Holography</a>\nby Scott Collier (Prince
 ton) as part of Theoretical Physics Seminars (Kentucky)\n\n\nAbstract\nAbs
 tract: In recent years\, a new holographic paradigm has emerged in which s
 imple theories of gravity in low dimensions are dual to statistical ensemb
 les of quantum mechanical systems rather than particular quantum systems. 
 This is a conceptual departure from the conventional holographic paradigm\
 , particularly as realized in string theory. A hallmark of such averaged h
 olographic dualities is the non-factorization of multi-boundary observable
 s due to the presence of Euclidean wormholes in the bulk gravitational the
 ory. However\, more realistic holographic dualities in higher dimensions a
 re not expected to fundamentally involve microscopic averaging. Neverthele
 ss\, there are apparently contributions to the semiclassical gravitational
  path integral that are associated with averaging in the boundary theory. 
 In this talk I will attempt to reconcile these perspectives by elucidating
  the emergence of averaging in two different models based on recent works 
 of mine: one top-down\, the other bottom-up. In both cases\, averaging of 
 boundary degrees of freedom is an emergent phenomenon associated with the 
 expansion around the semiclassical limit.\n
LOCATION:https://researchseminars.org/talk/UKYhepth/48/
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