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Remarks on the Entropy of Non-Stationary Black Holes

G. Allemandi·L. Fatibene·M. Francaviglia
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Abstract

The definition of entropy obtained for stationary black holes is extended in this paper to the case of non-stationary black holes. Entropy is defined as a macroscopical thermodynamical quantity which satisfies the first principle of thermodynamics. In the non-stationary case a volume term appears since the solution does not admit a Killing vector.

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G. Allemandi, L. Fatibene, M. Francaviglia. 2003-01-07. Remarks on the Entropy of Non-Stationary Black Holes. https://arxiv.org/abs/gr-qc/0301023

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