Cosmological inflation driven by a scalar torsion function

Detalhes bibliográficos
Autor(a) principal: Guimarães, T. M.
Data de Publicação: 2021
Outros Autores: Lima, R. de C. [UNESP], Pereira, S. H. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1140/epjc/s10052-021-09076-x
http://hdl.handle.net/11449/207578
Resumo: A viable model for inflation driven by a torsion function in a Friedmann background is presented. The scalar spectral index in the interval 0.92 ≲ ns≲ 0.97 is obtained in order to satisfy the initial conditions for inflation. The post inflationary phase is also studied, and the analytical solutions obtained for scale factor and energy density generalizes that ones for a matter dominated universe, indicating just a small deviation from the standard model evolution. The same kind of torsion function used also describes satisfactorily the recent acceleration of the universe, which could indicate a possible unification of different phases, apart form specific constants
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spelling Cosmological inflation driven by a scalar torsion functionA viable model for inflation driven by a torsion function in a Friedmann background is presented. The scalar spectral index in the interval 0.92 ≲ ns≲ 0.97 is obtained in order to satisfy the initial conditions for inflation. The post inflationary phase is also studied, and the analytical solutions obtained for scale factor and energy density generalizes that ones for a matter dominated universe, indicating just a small deviation from the standard model evolution. The same kind of torsion function used also describes satisfactorily the recent acceleration of the universe, which could indicate a possible unification of different phases, apart form specific constantsInstituto Federal de Educação Ciência e Tecnologia do Paraná (IFPR), Campus IvaiporãDepartamento de Física e Química Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP)Departamento de Física e Química Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP)Ciência e Tecnologia do Paraná (IFPR)Universidade Estadual Paulista (Unesp)Guimarães, T. M.Lima, R. de C. [UNESP]Pereira, S. H. [UNESP]2021-06-25T10:57:35Z2021-06-25T10:57:35Z2021-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1140/epjc/s10052-021-09076-xEuropean Physical Journal C, v. 81, n. 4, 2021.1434-60521434-6044http://hdl.handle.net/11449/20757810.1140/epjc/s10052-021-09076-x2-s2.0-85103816550Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEuropean Physical Journal Cinfo:eu-repo/semantics/openAccess2024-07-01T20:52:37Zoai:repositorio.unesp.br:11449/207578Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:46:59.467346Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cosmological inflation driven by a scalar torsion function
title Cosmological inflation driven by a scalar torsion function
spellingShingle Cosmological inflation driven by a scalar torsion function
Guimarães, T. M.
title_short Cosmological inflation driven by a scalar torsion function
title_full Cosmological inflation driven by a scalar torsion function
title_fullStr Cosmological inflation driven by a scalar torsion function
title_full_unstemmed Cosmological inflation driven by a scalar torsion function
title_sort Cosmological inflation driven by a scalar torsion function
author Guimarães, T. M.
author_facet Guimarães, T. M.
Lima, R. de C. [UNESP]
Pereira, S. H. [UNESP]
author_role author
author2 Lima, R. de C. [UNESP]
Pereira, S. H. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Ciência e Tecnologia do Paraná (IFPR)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Guimarães, T. M.
Lima, R. de C. [UNESP]
Pereira, S. H. [UNESP]
description A viable model for inflation driven by a torsion function in a Friedmann background is presented. The scalar spectral index in the interval 0.92 ≲ ns≲ 0.97 is obtained in order to satisfy the initial conditions for inflation. The post inflationary phase is also studied, and the analytical solutions obtained for scale factor and energy density generalizes that ones for a matter dominated universe, indicating just a small deviation from the standard model evolution. The same kind of torsion function used also describes satisfactorily the recent acceleration of the universe, which could indicate a possible unification of different phases, apart form specific constants
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:57:35Z
2021-06-25T10:57:35Z
2021-04-01
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/10.1140/epjc/s10052-021-09076-x
European Physical Journal C, v. 81, n. 4, 2021.
1434-6052
1434-6044
http://hdl.handle.net/11449/207578
10.1140/epjc/s10052-021-09076-x
2-s2.0-85103816550
url http://dx.doi.org/10.1140/epjc/s10052-021-09076-x
http://hdl.handle.net/11449/207578
identifier_str_mv European Physical Journal C, v. 81, n. 4, 2021.
1434-6052
1434-6044
10.1140/epjc/s10052-021-09076-x
2-s2.0-85103816550
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv European Physical Journal C
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
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_ 1808129357692010496

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