Is the cosmological constant of topological origin?

Detalhes bibliográficos
Autor(a) principal: Le Delliou, M. [UNESP]
Data de Publicação: 2020
Outros Autores: Lorca Espiro, J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.dark.2020.100569
http://hdl.handle.net/11449/200331
Resumo: The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an Einstein–Cartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessence-like topological fields. Its evaluation through the boundary of black holes yields a range compatible with the observed value, with uncertainty of three orders of magnitude. In turns, it provides a measurement of the Universe's isoperimetric constant. As in other dark energy studies, quantum vacuum energy corrections are left for quantum gravity studies to explain away.
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spelling Is the cosmological constant of topological origin?The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an Einstein–Cartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessence-like topological fields. Its evaluation through the boundary of black holes yields a range compatible with the observed value, with uncertainty of three orders of magnitude. In turns, it provides a measurement of the Universe's isoperimetric constant. As in other dark energy studies, quantum vacuum energy corrections are left for quantum gravity studies to explain away.Lanzhou UniversityFundamental Research Funds for the Central UniversitiesCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Institute of Theoretical Physics School of Physical Science and Technology Lanzhou University, No.222, South Tianshui Road, LanzhouInstituto de Astrofísica e Ciências do Espaço Universidade de Lisboa Faculdade de Ciências, Ed. C8, Campo GrandeInstituto de Física Teórica Universidade Estadual Paulista (IFT-UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra FundaDepartamento de Ciencias Físicas Facultad de Ingeniería Ciencias y Administración Universidad de La Frontera, Avda. Francisco Salazar 01145, Casilla 54-D TemucoInstituto de Física Teórica Universidade Estadual Paulista (IFT-UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra FundaFundamental Research Funds for the Central Universities: lzujbky-2019-25CAPES: PNPD/CAPES20132029Lanzhou UniversityFaculdade de CiênciasUniversidade Estadual Paulista (Unesp)Universidad de La FronteraLe Delliou, M. [UNESP]Lorca Espiro, J.2020-12-12T02:03:49Z2020-12-12T02:03:49Z2020-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.dark.2020.100569Physics of the Dark Universe, v. 29.2212-6864http://hdl.handle.net/11449/20033110.1016/j.dark.2020.1005692-s2.0-85083873525Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysics of the Dark Universeinfo:eu-repo/semantics/openAccess2021-10-23T12:19:08Zoai:repositorio.unesp.br:11449/200331Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:56:43.856195Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Is the cosmological constant of topological origin?
title Is the cosmological constant of topological origin?
spellingShingle Is the cosmological constant of topological origin?
Le Delliou, M. [UNESP]
title_short Is the cosmological constant of topological origin?
title_full Is the cosmological constant of topological origin?
title_fullStr Is the cosmological constant of topological origin?
title_full_unstemmed Is the cosmological constant of topological origin?
title_sort Is the cosmological constant of topological origin?
author Le Delliou, M. [UNESP]
author_facet Le Delliou, M. [UNESP]
Lorca Espiro, J.
author_role author
author2 Lorca Espiro, J.
author2_role author
dc.contributor.none.fl_str_mv Lanzhou University
Faculdade de Ciências
Universidade Estadual Paulista (Unesp)
Universidad de La Frontera
dc.contributor.author.fl_str_mv Le Delliou, M. [UNESP]
Lorca Espiro, J.
description The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an Einstein–Cartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessence-like topological fields. Its evaluation through the boundary of black holes yields a range compatible with the observed value, with uncertainty of three orders of magnitude. In turns, it provides a measurement of the Universe's isoperimetric constant. As in other dark energy studies, quantum vacuum energy corrections are left for quantum gravity studies to explain away.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T02:03:49Z
2020-12-12T02:03:49Z
2020-09-01
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/10.1016/j.dark.2020.100569
Physics of the Dark Universe, v. 29.
2212-6864
http://hdl.handle.net/11449/200331
10.1016/j.dark.2020.100569
2-s2.0-85083873525
url http://dx.doi.org/10.1016/j.dark.2020.100569
http://hdl.handle.net/11449/200331
identifier_str_mv Physics of the Dark Universe, v. 29.
2212-6864
10.1016/j.dark.2020.100569
2-s2.0-85083873525
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physics of the Dark Universe
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_ 1808129376652361728

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