The Second Law in 4D Einstein-Gauss-Bonnet Gravity
arXiv:1312.1323 · doi:10.1088/0264-9381/31/15/155007
Abstract
The topological contribution to black hole entropy of a Gauss-Bonnet term in four dimensions opens up the possibility of a violation of the second law of thermodynamics in black hole mergers. We show, however, that the second law is not violated in the regime where Einstein-Gauss-Bonnet holds as an effective theory and black holes can be treated thermodynamically. For mergers of AdS black holes, the second law appears to be violated even in Einstein gravity; we argue, however, that the second law holds when gravitational potential energy is taken into account.
v2 is the final version as it appears in the journal
References in corpus (4)
Cited by in corpus (18)
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