Thermodynamics of de Sitter Black Holes: Thermal Cosmological Constant

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dc.creatorSekiwa, Yuichi
dc.date2006-02-25
dc.date2006-04-10
dc.date.accessioned2026-07-07T07:02:55Z
dc.date.available2026-07-07T07:02:55Z
dc.descriptionWe study the thermodynamic properties associated with the black hole event horizon and the cosmological horizon for black hole solutions in asymptotically de Sitter spacetimes. We examine thermodynamics of these horizons on the basis of the conserved charges according to Teitelboim's method. In particular, we have succeeded in deriving the generalized Smarr formula among thermodynamical quantities in a simple and natural way. We then show that cosmological constant must decrease when one takes into account the quantum effect. These observations have been obtained if and only if cosmological constant plays the role of a thermodynamical state variable. We also touch upon the relation between inflation of our universe and a phase transition of black holes.
dc.descriptionRevtex4, 11pages
dc.identifierhttps://arxiv.org/abs/hep-th/0602269
dc.identifierhttp://arxiv.org/abs/hep-th/0602269
dc.identifierPhys.Rev. D73 (2006) 084009
dc.identifierdoi:10.1103/PhysRevD.73.084009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/108777
dc.subjectHigh Energy Physics - Theory
dc.titleThermodynamics of de Sitter Black Holes: Thermal Cosmological Constant
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