Can Extremal Black Holes Have Non-Zero Entropy ?

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dc.creatorDas, Saurya
dc.creatorDasgupta, Arundhati
dc.creatorRamadevi, P.
dc.date1996-08-23
dc.date1997-12-27
dc.date.accessioned2026-07-07T10:58:46Z
dc.date.available2026-07-07T10:58:46Z
dc.descriptionWe give several pieces of evidence to show that extremal black holes cannot be obtained as limits of non-extremal black holes. We review arguments in the literature showing that the entropy of extremal black holes is zero, while that of near-extremal ones obey the Bekenstein-Hawking formula. However, from the counting of degeneracy of quantum (BPS) states of string theory the entropy of extremal stringy black holes obeys the area law. An attempt is made to reconcile these arguments.
dc.description18 pages, RevTEX; last section modified, version to appear in Mod. Phys. Lett. A
dc.identifierhttps://arxiv.org/abs/hep-th/9608162
dc.identifierhttp://arxiv.org/abs/hep-th/9608162
dc.identifierMod.Phys.Lett.A12:3067-3080,1997
dc.identifierdoi:10.1142/S0217732397003186
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187220
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCan Extremal Black Holes Have Non-Zero Entropy ?
dc.typetext

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