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An investigation of AdS(2) backreaction and holography

Author(s): Engelsöy, Julius; Mertens, Thomas G.; Verlinde, Herman L.

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Abstract: We investigate a dilaton gravity model in AdS(2) 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.
Publication Date: 28-Jul-2016
Electronic Publication Date: 28-Jul-2016
Citation: Engelsöy, Julius, Mertens, Thomas G, Verlinde, Herman. (2016). An investigation of AdS(2) backreaction and holography. JOURNAL OF HIGH ENERGY PHYSICS, 10.1007/JHEP07(2016)139
DOI: doi:10.1007/JHEP07(2016)139
ISSN: 1029-8479
Type of Material: Journal Article
Version: Final published version. This is an open access article.

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