Two-dimensional dilaton gravity in a unitary gauge

Preprint

18 November 1992

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/9211082

Abstract

Reduced phase space formulation of CGHS model of 2d dilaton gravity is studied in en extrinsic time gauge. The corresponding Hamiltonian can be promoted into a Hermitian operator acting in the physical Hilbert space, implying a unitary evolution for the system. Consequences for the black hole physics are discussed. In particular, this manifestly unitary theory rules out the Hawking scenario for the endpoint of the black hole evaporation process.

Keywords

DIMENSIONAL DILATON
BLACK HOLE PHYSICS
DILATON GRAVITY
GAUGE REDUCED
UNITARY GAUGE
HILBERT SPACE
GRAVITY

All Related Versions

Version 1, 1992-11-18, ArXiv
Published version: Physics Letters B, 304 (1-2), 70.

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