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Thermodynamics of Near-Extreme Black Holes

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arxiv hep-th/0012020 v1 pith:TAEYMMOM submitted 2000-12-04 hep-th gr-qc

Thermodynamics of Near-Extreme Black Holes

classification hep-th gr-qc
keywords energystatesblackdegenerateexcitedgapsgroundhere
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The thermodynamics of nearly-extreme charged black holes depends upon the number of ground states at fixed large charge and upon the distribution of excited energy states. Here three possibilities are examined: (1) Ground state highly degenerate (as suggested by the large semiclassical Hawking entropy of an extreme Reissner-Nordstrom black hole), excited states not. (2) All energy levels highly degenerate, with macroscopic energy gaps between them. (3) All states nondegenerate (or with low degeneracy), separated by exponentially tiny energy gaps. I suggest that in our world with broken supersymmetry, this last possibility seems most plausible. An experiment is proposed to distinguish between these possibilities, but it would take a time that is here calculated to be more than about 10^837 years.

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Cited by 5 Pith papers

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  4. Universal Lichnerowicz Lifting of Near-Horizon Soft Modes

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    The universal logarithmic temperature dependence in near-extremal black hole thermodynamics originates from the first-order lifting of Lichnerowicz tensor zero modes in a 2D maximally symmetric throat, which after nor...

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