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SUMMARY:Cauchy Slice Holography - Goncalo Araujo-Regado (DAMTP)
DTSTART:20220609T120000Z
DTEND:20220609T130000Z
UID:TALK173279@talks.cam.ac.uk
CONTACT:Chiung Hwang
DESCRIPTION:In this talk I will explain how a particular (T^2) irrelevant 
 deformation of the boundary CFT can be used to construct a holographic des
 cription of asymptotically-AdS quantum gravity in which the dual theory li
 ves on Cauchy slices of the Lorentzian bulk. This allows us to define an e
 xplicit map between boundary CFT states and bulk Wheeler-DeWitt states\, i
 .e. quantum metric superpositions satisfying the Hamiltonian constraint. F
 urthermore\, dynamics with respect to asymptotic time is matched on both s
 ides of the duality as an operator equality in the T^2-deformed field theo
 ry. This description provides a manifestly background-independent definiti
 on of quantum gravity\, without reference to any bulk classical geometry. 
 I will end by discussing/speculating on how this approach can be extended 
 to obtain a holographic description of cosmology.
LOCATION:Potter Room\, DAMTP
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