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Entropy 2015, 17(9), 6503-6518; doi:10.3390/e17096503

Thermodynamic Metrics and Black Hole Physics

1
Stockholms Universitet, AlbaNova, Fysikum, SE-106 91 Stockholm, Sweden
2
Sjölins Gymnasium Södermalm, Sandbacksgatan 10, SE-116 21 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Academic Editor: George Ruppeiner
Received: 16 July 2015 / Revised: 24 August 2015 / Accepted: 31 August 2015 / Published: 22 September 2015
(This article belongs to the Special Issue Geometry in Thermodynamics)
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Abstract

We give a brief survey of thermodynamic metrics, in particular the Hessian of the entropy function, and how they apply to black hole thermodynamics. We then provide a detailed discussion of the Gibbs surface of Kerr black holes. In particular, we analyze its global properties and extend it to take the entropy of the inner horizon into account. A brief discussion of Kerr–Newman black holes is included. View Full-Text
Keywords: black hole thermodynamics; thermodynamic metrics black hole thermodynamics; thermodynamic metrics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Åman, J.E.; Bengtsson, I.; Pidokrajt, N. Thermodynamic Metrics and Black Hole Physics. Entropy 2015, 17, 6503-6518.

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