Interacting constituents in cosmology

dc.contributor.authorAldrovandi, R. [UNESP]
dc.contributor.authorCuzinatto, R. R. [UNESP]
dc.contributor.authorMedeiros, L. G. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:53:42Z
dc.date.accessioned2014-05-20T14:09:33Z
dc.date.available2013-09-30T18:53:42Z
dc.date.available2014-05-20T14:09:33Z
dc.date.issued2008-06-01
dc.description.abstractUniverse evolution, as described by Friedmann's equations, is determined by source terms fixed by the choice of pressure x energy density equations of state p(p). The usual approach in cosmology considers equations of state accounting only for kinematic terms, ignoring the contribution from the interactions between the particles constituting the source fluid. In this work the importance of these neglected terms is emphasized. A systematic method, based on the statistical mechanics of real fluids, is proposed to include them. A toy model is presented which shows how such interaction terms could be applied to engender significant cosmological effects.en
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.extent857-879
dc.identifier.citationInternational Journal of Modern Physics D. Singapore: World Scientific Publ Co Pte Ltd, v. 17, n. 6, p. 857-879, 2008.
dc.identifier.issn0218-2718
dc.identifier.urihttp://hdl.handle.net/11449/24190
dc.identifier.wosWOS:000257387000002
dc.language.isoeng
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofInternational Journal of Modern Physics D
dc.relation.ispartofjcr2.171
dc.relation.ispartofsjr1,079
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcosmologyen
dc.subjectstatistical mechanicsen
dc.subjectequation of stateen
dc.titleInteracting constituents in cosmologyen
dc.typeArtigo
dcterms.licensehttp://www.worldscientific.com/page/authors/author-rights
dcterms.rightsHolderWorld Scientific Publ Co Pte Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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