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SUMMARY:To dS/CFT and Back Through Cauchy Slice Holography - Ayngaran Thav
 anesan (DAMTP)
DTSTART:20241108T130000Z
DTEND:20241108T140000Z
UID:TALK223555@talks.cam.ac.uk
CONTACT:Daniela Cors
DESCRIPTION:In this talk\, I will first introduce Cauchy Slice Holography 
 (CSH)\, which connects CFT states in a holographic theory to bulk Wheeler-
 DeWitt states providing us with a bulk holographic dictionary. Unlike AdS/
 CFT\, de Sitter (dS) space lacks a fully established holographic dictionar
 y\, but boundary observables remain constrained by conformal invariance. U
 sing the CSH dictionary\, I will show how to flow 2-point correlators from
  the boundary to a finite-time Poincaré slice of dS\, enabling the comput
 ation of finite-time cosmological correlators. I’ll highlight key differ
 ences from the AdS case.\n\nIn the second part\, I will explore the TTbar+
 Λd deformation to obtain a CFT dual of global dS by continuing this defor
 mation of a Euclidean CFT with a sparse spectrum to Cauchy slices. Extendi
 ng the flow past the static patch horizon leads to an imaginary spectrum\,
  allowing an interpretation of the Gibbons-Hawking entropy microstates as 
 living on Euclidean Cauchy slices. The CFT limit is restored as the deform
 ation parameter approaches zero.\n\nTime permitting I will discuss recent 
 explorations for UV-completions of CSH which will thus define non-perturba
 tive bulk quantum gravity.
LOCATION:Potter room/https://cam-ac-uk.zoom.us/j/87320182392?pwd=MaA6JG5bI
 vft0RqCAzOhwTCtAbrYSZ.1
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