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SUMMARY:Reconstructing bulk equation of motion using CFT modular Hamiltoni
ans
DTSTART:20221205T131500Z
DTEND:20221205T151500Z
DTSTAMP:20231210T011000Z
UID:indico-event-129@indico.hiskp.uni-bonn.de
DESCRIPTION:Speakers: Nele Callebaut (Uni Cologne)\n\nIn the context of Ad
S/CFT\, the program of bulk reconstruction aims to reconstruct observables
in AdS gravity (or 'bulk' observables) in terms of CFT data. A free scala
r field in AdS for example can be reconstructed in terms of smeared primar
y operators of the CFT in a process called HKLL bulk reconstruction. It is
significantly harder to reconstruct interacting fields in AdS\, in partic
ular gravitationally interacting fields. In the highly symmetric case of 3
-dimensional AdS however\, bulk reconstruction of a gravitationally dresse
d scalar field is possible. In this talk I will discuss how these bulk obj
ects are special from the point of view of CFT entanglement data\, in part
icular what the action of the modular Hamiltonian on the (respectively fre
e or gravitationally interacting) bulk field is. The other way around\, th
e action of the modular Hamiltonian on the CFT representation of the bulk
field constrains the field's bulk equation of motion to be consistent with
diffeomorphism invariance. The talk will be based on 2205.15244.\n\nhttps
://indico.hiskp.uni-bonn.de/event/129/
LOCATION:Wegelerstraße 10/2.019 (PI) - Seminar Room BCTP I (PI)
URL:https://indico.hiskp.uni-bonn.de/event/129/
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