An investigation of AdS2 backreaction and holography

Julius Engelsöy, Thomas G. Mertens, Herman Verlinde

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266 Scopus citations

Abstract

Abstract: 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.

Original languageEnglish (US)
Article number139
JournalJournal of High Energy Physics
Volume2016
Issue number7
DOIs
StatePublished - Jul 1 2016

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • 2D Gravity
  • AdS-CFT Correspondence
  • Black Holes
  • Models of Quantum Gravity

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