Phys. Rev. D 61, 084018 (2000) [4 pages]Evidence for a null entropy of extremal black holesReceived 6 October 1999; published 27 March 2000 We present some arguments in support of a zero entropy for extremal black holes. These rely on a combination of both quantum, thermodynamic, and statistical physics arguments. This result may shed some light on the nature of these extreme objects. In addition, we show that within a quantum framework the capture of a particle by an initially extremal black hole always results in a final nonextremal black hole. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.61.084018
DOI:
10.1103/PhysRevD.61.084018
PACS:
04.70.Dy, 97.60.Lf
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