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SUMMARY:Alexandre Belin (CERN)
DTSTART:20210315T163000Z
DTEND:20210315T174500Z
DTSTAMP:20260423T024555Z
UID:HET/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HET/11/">The
  OPE Randomness Hypothesis and Euclidean Wormholes</a>\nby Alexandre Belin
  (CERN) as part of Purdue HET\n\n\nAbstract\nRecent developments in hologr
 aphy indicate that the semi-classical Euclidean path-integral of Einstein 
 gravity is much more powerful than previously anticipated. It is capable o
 f reproducing a unitary Page curve for black hole evaporation\, and can ev
 en capture some features of the discrete nature of black hole microstates.
  Wormhole geometries play a key role in this context. I will propose a mec
 hanism to explain this in the CFT: the OPE Randomness Hypothesis. This ans
 atz is a generalization of the Eigenstate Thermalization Hypothesis which 
 applies to chaotic CFTs\, and treats OPE coefficients of heavy operators a
 s random variables with a given probability distribution. I will present t
 wo applications of this framework: First\, it resolves a factorization puz
 zle in AdS_3/CFT_2 due to the genus-2 wormhole\, as raised by Maoz and Mal
 dacena. Second\, it provides an argument against global symmetries in quan
 tum gravity.\n
LOCATION:https://researchseminars.org/talk/HET/11/
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