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SUMMARY:Carrollian Holography from the Flat Limit of AdS/CFT - Romain Ruzz
 iconi\, Oxford University
DTSTART:20250206T130000Z
DTEND:20250206T140000Z
UID:TALK225274@talks.cam.ac.uk
CONTACT:122734
DESCRIPTION:Carrollian holography proposes that gravity in four-dimensiona
 l (4d) asymptotically flat spacetime is dual to a three-dimensional (3d) C
 arrollian CFT living at null infinity. In this talk\, I will review this f
 ramework and explain how massless amplitudes in flat space can be re-expre
 ssed as Carrollian CFT correlators at the boundary\, referred to as Carrol
 lian amplitudes. I will show that these correlators naturally emerge from 
 the Carrollian limit of holographic CFT correlators computed via AdS Witte
 n diagrams\, establishing a correspondence between the flat space limit in
  the bulk and the Carrollian limit at the boundary. As a concrete applicat
 ion\, I will briefly discuss the flat/Carrollian limit of the duality betw
 een 11d supergravity on AdS_4xS^7 and the 3d ABJM theory.
LOCATION:Potter Room (B1.19)
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