Quantum black hole evaporation

Kareljan Schoutens, Herman Verlinde, Erik Verlinde

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

We investigate a recently proposed model for a full quantum description of two-dimensional black hole evaporation, in which a reflecting boundary condition is imposed in the strong-coupling region. It is shown that in this model each initial state is mapped to a well-defined asymptotic out state, provided one performs a certain projection in the gravitational zero mode sector. We find that for an incoming localized energy pulse, the corresponding outgoing state contains approximately thermal radiation, in accordance with semiclassical predictions. In addition, our model allows for certain acausal strong-coupling effects near the singularity that give rise to corrections to the Hawking spectrum and restore the coherence of the out state. To an asymptotic observer these corrections appear to originate from behind the receding apparent horizon and start to influence the outgoing state long before the black hole has emitted most of its mass. Finally, by putting the system in a finite box, we are able to derive some algebraic properties of the scattering matrix and prove that the final state contains all initial information.

Original languageEnglish (US)
Pages (from-to)2670-2685
Number of pages16
JournalPhysical Review D
Volume48
Issue number6
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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