An investigation of AdS2 backreaction and holography
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2016, no 7, 139Article in journal (Refereed) Published
We investigate a dilaton gravity model in AdS2 proposed by Almheiri and Polchinski  and develop a 1d effective description in terms of a dynamical boundary time with a Schwarzian derivative action. We show that the effective model is equivalent to a 1d version of Liouville theory, and investigate its dynamics and symmetries via a standard canonical framework. We include the coupling to arbitrary conformal matter and analyze the effective action in the presence of possible sources. We compute commutators of local operators at large time separation, and match the result with the time shift due to a gravitational shockwave interaction. We study a black hole evaporation process and comment on the role of entropy in this model.
Place, publisher, year, edition, pages
Springer, 2016. Vol. 2016, no 7, 139
2D Gravity, AdS-CFT Correspondence, Black Holes, Models of Quantum Gravity
IdentifiersURN: urn:nbn:se:kth:diva-197187DOI: 10.1007/JHEP07(2016)139ScopusID: 2-s2.0-84982683999OAI: oai:DiVA.org:kth-197187DiVA: diva2:1055681
QC 201612132016-12-132016-11-302016-12-13Bibliographically approved