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First-order formalism for dark energy and dust

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dc.contributor.authorBazeia, D.
dc.contributor.authorLosano, L.
dc.contributor.authorRodrigues, J. J.
dc.contributor.authorRosenfeld, Rogério [UNESP]
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:53:09Z
dc.date.accessioned2014-05-20T14:09:16Z
dc.date.available2013-09-30T18:53:09Z
dc.date.available2014-05-20T14:09:16Z
dc.date.issued2008-05-01
dc.description.abstractThis work deals with a first-order formalism for dark energy and dust in standard cosmology, for models described by a real scalar field in the presence of dust in spatially flat space. The field dynamics may be standard or tachyonic, and we show how the equations of motion can be solved by first-order differential equations. We investigate a model to illustrate how the dustlike matter may affect the cosmic evolution using this framework.en
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent113-117
dc.identifierhttp://dx.doi.org/10.1140/epjc/s10052-008-0566-x
dc.identifier.citationEuropean Physical Journal C. New York: Springer, v. 55, n. 1, p. 113-117, 2008.
dc.identifier.doi10.1140/epjc/s10052-008-0566-x
dc.identifier.issn1434-6044
dc.identifier.urihttp://hdl.handle.net/11449/24136
dc.identifier.wosWOS:000255742000010
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Physical Journal C
dc.relation.ispartofjcr5.172
dc.relation.ispartofsjr2,022
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleFirst-order formalism for dark energy and dusten
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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São Paulo - IFT - Instituto de Física Teórica