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arXiv · hep-th/9510180

Statistical Thermodynamics of a Black Hole in Terms of Surface Fields

Claudio Teitelboim
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Abstract

An action principle for spacetimes with the topology of an Euclidean black-hole is given. The gravitational field is described by the ordinary volume degrees of freedom plus additional surface fields at the horizon. The surface degrees of freedom correspond to diffeomorphisms on the sphere at the horizon and a field of ``opening angles''. General covariance forces the surface modes to be confined to a box of an unusual exponential shape, whose volume must be specified as part of the definition of the statistical ensemble. This gives rise to the Bekenstein-Hawking entropy.

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Claudio Teitelboim. 1995-10-24. Statistical Thermodynamics of a Black Hole in Terms of Surface Fields. https://doi.org/10.1103/physrevd.53.2870

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