Black Hole Entropy in Two Dimensions
arXiv:hep-th/9405162 · doi:10.1103/PhysRevD.50.6412
Abstract
Black hole entropy is studied for an exactly solvable model of two-dimensional gravity\cite{rst1}, using recently developed Noether charge techniques\cite{wald1}. This latter approach is extended to accomodate the non-local form of the semiclassical effective action. In the two-dimensional model, the final black hole entropy can be expressed as a local quantity evaluated on the horizon. This entropy is shown to satisfy an increase theorem on either the global or apparent horizon of a two-dimensional black hole.
18 pages, latex McGill/94-22 (minor revisions; final version which will appear in Phys. Rev. D)
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