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SUMMARY:Holography for de Sitter 4-point functions - Paul McFadden (Newcas
 tle)
DTSTART:20230522T120000Z
DTEND:20230522T130000Z
UID:TALK195424@talks.cam.ac.uk
CONTACT:Dr  Dong-Gang Wang
DESCRIPTION:We review the calculation of de Sitter correlators from a holo
 graphic perspective.  Using either the wavefunction of the universe or the
  Schwinger-Keldysh formalism\, a connection with AdS/CFT can be establishe
 d relating de Sitter correlators to those of a boundary conformal field th
 eory.  This mapping is especially interesting in the cases for which de Si
 tter correlators have infrared divergences\, and more generally\, for whic
 h the CFT correlators require renormalisation.  We discuss the anomalous W
 ard identities that arise and their implications for the operator dimensio
 ns of the dual CFT.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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