Entropy in locally-de Sitter spacetimes

dc.contributor.authorAraujo, A. [UNESP]
dc.contributor.authorPereira, J. G. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.abstractAs quotient spaces, Minkowski and de Sitter are fundamental spacetimes in the sense that they are known a priori, independently of Einstein equation. They represent different nongravitational backgrounds for the construction of physical theories. If general relativity is constructed on a de Sitter spacetime, the underlying kinematics will no longer be ruled by Poincare, but by the de Sitter group. In this case the definition of diffeomorphism changes, producing concomitant changes in the notions of energy and entropy. These changes are explicitly discussed for the case of the Schwarzschild solution, in which the black hole and the de Sitter horizons show up as a unique entangled system. Such entanglement, together with energy conservation, create a constraint between the black hole activity and the evolution of the de Sitter radius, providing a new scenario for the study of cosmology.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, BR-01156970 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, BR-01156970 Sao Paulo, Brazil
dc.description.sponsorshipUniversidad Centroccidental Lisandro Alvarado, Barquisimeto, Venezuela
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.identifier.citationInternational Journal Of Modern Physics D. Singapore: World Scientific Publ Co Pte Ltd, v. 24, n. 14, 12 p., 2015.
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofInternational Journal Of Modern Physics D
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCartan geometry
dc.subjecthorizon thermodynamics
dc.subjectSchwarzschild-de Sitter solution
dc.titleEntropy in locally-de Sitter spacetimesen
dcterms.rightsHolderWorld Scientific Publ Co Pte Ltd