Black Hole Entropy without Brick Walls

Details Black Hole Entropy without Brick Walls Black Hole Entropy without Brick Walls

1995-03-01

arxiv.org/abs/gr-qc/9503003v3

Phys.Rev. D52 (1995) 2245-2253

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, plain LaTex minor additions including some references; version accepted for publication

Scientific paper

10.1103/PhysRevD.52.2245

We present evidence which confirms a suggestion by Susskind and Uglum regarding black hole entropy. Using a Pauli-Villars regulator, we find that 't Hooft's approach to evaluating black hole entropy through a statistical-mechanical counting of states for a scalar field propagating outside the event horizon yields precisely the one-loop renormalization of the standard Bekenstein-Hawking formula, $S=\A/(4G)$. Our calculation also yields a constant contribution to the black hole entropy, a contribution associated with the one-loop renormalization of higher curvature terms in the gravitational action.

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