de Sitter-invariant special relativity and the dark energy problem

Detalhes bibliográficos
Autor(a) principal: Araujo, A. [UNESP]
Data de Publicação: 2017
Outros Autores: Lopez, D. F. [UNESP], Pereira, J. G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1088/1361-6382/aa6bbb
http://hdl.handle.net/11449/162843
Resumo: The replacement of the Poincare-invariant Einstein special relativity by a de Sitter-invariant special relativity produces concomitant changes in all relativistic theories, including general relativity. A crucial change in the latter is that both the background de Sitter curvature and the gravitational dynamical curvature turns out to be included in a single curvature tensor. This means that the cosmological term Lambda no longer explicitly appears in Einstein equation, and is consequently not restricted to be constant. In this paper, the Newtonian limit of such theory is obtained, and the ensuing Newtonian Friedmann equations are shown to provide a good account of the dark energy content of the present-day universe.
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spelling de Sitter-invariant special relativity and the dark energy problemspecial relativitygravitationcosmologydark energyThe replacement of the Poincare-invariant Einstein special relativity by a de Sitter-invariant special relativity produces concomitant changes in all relativistic theories, including general relativity. A crucial change in the latter is that both the background de Sitter curvature and the gravitational dynamical curvature turns out to be included in a single curvature tensor. This means that the cosmological term Lambda no longer explicitly appears in Einstein equation, and is consequently not restricted to be constant. In this paper, the Newtonian limit of such theory is obtained, and the ensuing Newtonian Friedmann equations are shown to provide a good account of the dark energy content of the present-day universe.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, BR-01140070 Sao Paulo, BrazilUniv Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, BR-01140070 Sao Paulo, BrazilCAPES: 33015015001P7CNPq: 309184/2013-4Iop Publishing LtdUniversidade Estadual Paulista (Unesp)Araujo, A. [UNESP]Lopez, D. F. [UNESP]Pereira, J. G. [UNESP]2018-11-26T17:34:38Z2018-11-26T17:34:38Z2017-06-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://dx.doi.org/10.1088/1361-6382/aa6bbbClassical And Quantum Gravity. Bristol: Iop Publishing Ltd, v. 34, n. 11, 14 p., 2017.0264-9381http://hdl.handle.net/11449/16284310.1088/1361-6382/aa6bbbWOS:000402399700014WOS000402399700014.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengClassical And Quantum Gravity1,809info:eu-repo/semantics/openAccess2024-01-10T06:25:00Zoai:repositorio.unesp.br:11449/162843Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:36:39.812180Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv de Sitter-invariant special relativity and the dark energy problem
title de Sitter-invariant special relativity and the dark energy problem
spellingShingle de Sitter-invariant special relativity and the dark energy problem
Araujo, A. [UNESP]
special relativity
gravitation
cosmology
dark energy
title_short de Sitter-invariant special relativity and the dark energy problem
title_full de Sitter-invariant special relativity and the dark energy problem
title_fullStr de Sitter-invariant special relativity and the dark energy problem
title_full_unstemmed de Sitter-invariant special relativity and the dark energy problem
title_sort de Sitter-invariant special relativity and the dark energy problem
author Araujo, A. [UNESP]
author_facet Araujo, A. [UNESP]
Lopez, D. F. [UNESP]
Pereira, J. G. [UNESP]
author_role author
author2 Lopez, D. F. [UNESP]
Pereira, J. G. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Araujo, A. [UNESP]
Lopez, D. F. [UNESP]
Pereira, J. G. [UNESP]
dc.subject.por.fl_str_mv special relativity
gravitation
cosmology
dark energy
topic special relativity
gravitation
cosmology
dark energy
description The replacement of the Poincare-invariant Einstein special relativity by a de Sitter-invariant special relativity produces concomitant changes in all relativistic theories, including general relativity. A crucial change in the latter is that both the background de Sitter curvature and the gravitational dynamical curvature turns out to be included in a single curvature tensor. This means that the cosmological term Lambda no longer explicitly appears in Einstein equation, and is consequently not restricted to be constant. In this paper, the Newtonian limit of such theory is obtained, and the ensuing Newtonian Friedmann equations are shown to provide a good account of the dark energy content of the present-day universe.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-08
2018-11-26T17:34:38Z
2018-11-26T17:34:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1088/1361-6382/aa6bbb
Classical And Quantum Gravity. Bristol: Iop Publishing Ltd, v. 34, n. 11, 14 p., 2017.
0264-9381
http://hdl.handle.net/11449/162843
10.1088/1361-6382/aa6bbb
WOS:000402399700014
WOS000402399700014.pdf
url http://dx.doi.org/10.1088/1361-6382/aa6bbb
http://hdl.handle.net/11449/162843
identifier_str_mv Classical And Quantum Gravity. Bristol: Iop Publishing Ltd, v. 34, n. 11, 14 p., 2017.
0264-9381
10.1088/1361-6382/aa6bbb
WOS:000402399700014
WOS000402399700014.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Classical And Quantum Gravity
1,809
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14
application/pdf
dc.publisher.none.fl_str_mv Iop Publishing Ltd
publisher.none.fl_str_mv Iop Publishing Ltd
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129442662318080

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