Two-dimensional dilaton gravity in a unitary gauge
High Energy Physics - Theory
2009-01-16 v1 General Relativity and Quantum Cosmology
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.
Cite
@article{arxiv.hep-th/9211082,
title = {Two-dimensional dilaton gravity in a unitary gauge},
author = {A. Mikovic},
journal= {arXiv preprint arXiv:hep-th/9211082},
year = {2009}
}
Comments
12 pages, LaTex file, Imperial-TP/92-93/8 and QMW/PH/92/16