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Varying alpha and black hole entropy | | Malcolm Fairbairn
; Michel H.G. Tytgat
; | | Date: |
10 Dec 2002 | | Journal: | JHEP 0302 (2003) 005 | | Subject: | hep-th astro-ph gr-qc hep-ph | | Affiliation: | ULB | | Abstract: | Recently it has been suggested that an increase in the fine structure constant alpha with time would decrease the entropy of a Reissner-Nordstrom black hole, thereby violating the second law of thermodynamics. In this note we point out that, at least for a certain class of charged dilaton black holes related to string theory, the entropy does not change under adiabatic variations of alpha and one might expect it to increase for non-adiabatic changes. | | Source: | arXiv, hep-th/0212105 | | Services: | Forum | Review | PDF | Favorites | |
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