Black Hole Entropy in Two Dimensions

Details Black Hole Entropy in Two Dimensions Black Hole Entropy in Two Dimensions

1994-05-25

arxiv.org/abs/hep-th/9405162v3

Phys.Rev.D50:6412-6421,1994

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, latex McGill/94-22 (minor revisions; final version which will appear in Phys. Rev. D)

Scientific paper

10.1103/PhysRevD.50.6412

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.

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