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SUMMARY:Daniel Harlow (MIT)
DTSTART:20201202T170000Z
DTEND:20201202T183000Z
DTSTAMP:20260423T022831Z
UID:QG-AA/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QG-AA/3/">Gl
 obal symmetry\, Euclidean gravity\, and the black hole information problem
 </a>\nby Daniel Harlow (MIT) as part of Quantum Gravity Across Approaches\
 n\n\nAbstract\nIn this talk I will show how the essential ingredients of r
 ecent calculations of the Page curve of an evaporating black hole can be u
 sed to generalize a recent argument against global symmetries beyond the A
 dS/CFT correspondence to more realistic theories of quantum gravity\, illu
 strating a close connection between the absence of global symmetries and a
  unitary resolution of the black hole information problem. I'll also give 
 several low-dimensional examples of quantum gravity theories which do not 
 have a unitary resolution of the black hole information problem\, and whic
 h therefore can and do have global symmetries. Motivated by this discussio
 n\, I'll conjecture that in a certain sense Euclidean quantum gravity is e
 quivalent to holography.  Based on recent work with Edgar Shaghoulian.\n
LOCATION:https://researchseminars.org/talk/QG-AA/3/
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