Gaussian processes reconstruction of the dark energy potential

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dc.contributor.authorJesus, J. [UNESP]
dc.contributor.authorValentim, R.
dc.contributor.authorEscobal, A. [UNESP]
dc.contributor.authorPereira, S. [UNESP]
dc.contributor.authorBenndorf, D. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2023-07-29T13:29:50Z
dc.date.available2023-07-29T13:29:50Z
dc.date.issued2022-11-01
dc.description.abstractScalar Fields (SF) have emerged as natural candidates for dark energy as quintessential or phantom fields, as they are the main ingredient of inflation theories. Instead of assuming some form for the scalar field potential, however, this work reconstructs the SF potential directly from observational data, namely, Hubble and SNe Ia data. We show that two popular forms for the SF potentials, namely, the power-law and the quadratic free-field, are compatible with the reconstructions thus obtained, at least for some choices of the priors of the matter density and curvature parameters and for some redshift intervals.en
dc.description.affiliationInstituto de Ciências e Engenharia Universidade Estadual Paulista (UNESP), R. Geraldo Alckmin, 519 SP
dc.description.affiliationDepartamento de Física Faculdade de Engenharia e Ciências de Guaratinguetá Universidade Estadual Paulista (UNESP), Av. Dr. Ariberto Pereira da Cunha 333 SP
dc.description.affiliationDepartamento de Física Instituto de Ciências Ambientais Químicas e Farmacêuticas (ICAQF) Universidade Federal de São Paulo (UNIFESP), Rua São Nicolau 210 SP
dc.description.affiliationUnespInstituto de Ciências e Engenharia Universidade Estadual Paulista (UNESP), R. Geraldo Alckmin, 519 SP
dc.description.affiliationUnespDepartamento de Física Faculdade de Engenharia e Ciências de Guaratinguetá Universidade Estadual Paulista (UNESP), Av. Dr. Ariberto Pereira da Cunha 333 SP
dc.identifierhttp://dx.doi.org/10.1088/1475-7516/2022/11/037
dc.identifier.citationJournal of Cosmology and Astroparticle Physics, v. 2022, n. 11, 2022.
dc.identifier.doi10.1088/1475-7516/2022/11/037
dc.identifier.issn1475-7516
dc.identifier.scopus2-s2.0-85142433539
dc.identifier.urihttp://hdl.handle.net/11449/247933
dc.language.isoeng
dc.relation.ispartofJournal of Cosmology and Astroparticle Physics
dc.sourceScopus
dc.subjectdark energy theory
dc.subjectStatistical sampling techniques
dc.titleGaussian processes reconstruction of the dark energy potentialen
dc.typeArtigo

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Artigos - Física e Química - FEG