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An investigation of AdS2 backreaction and holography
KTH, Skolan för teknikvetenskap (SCI), Fysik.
2016 (engelsk)Inngår i: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2016, nr 7, artikkel-id 139Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We investigate a dilaton gravity model in AdS2 proposed by Almheiri and Polchinski [1] 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.

sted, utgiver, år, opplag, sider
Springer, 2016. Vol. 2016, nr 7, artikkel-id 139
Emneord [en]
2D Gravity, AdS-CFT Correspondence, Black Holes, Models of Quantum Gravity
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-197187DOI: 10.1007/JHEP07(2016)139ISI: 000413180400001Scopus ID: 2-s2.0-84982683999OAI: oai:DiVA.org:kth-197187DiVA, id: diva2:1055681
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QC 20161213

Tilgjengelig fra: 2016-12-13 Laget: 2016-11-30 Sist oppdatert: 2019-10-18bibliografisk kontrollert

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