Past-directed scalar field gradients and scalar-tensor thermodynamics

We refine and slightly enlarge the recently proposed first-order thermodynamics of scalar-tensor gravity to include gravitational scalar fields with timelike and past-directed gradients. The implications and subtleties arising in this situation are discussed and an exact cosmological solution of sca...

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Detalles Bibliográficos
Autores principales: Giusti, Andrea, Giardino, Serena, Faraoni, Valerio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2023
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9995396/
https://www.ncbi.nlm.nih.gov/pubmed/36911575
http://dx.doi.org/10.1007/s10714-023-03095-7
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author Giusti, Andrea
Giardino, Serena
Faraoni, Valerio
author_facet Giusti, Andrea
Giardino, Serena
Faraoni, Valerio
author_sort Giusti, Andrea
collection PubMed
description We refine and slightly enlarge the recently proposed first-order thermodynamics of scalar-tensor gravity to include gravitational scalar fields with timelike and past-directed gradients. The implications and subtleties arising in this situation are discussed and an exact cosmological solution of scalar-tensor theory in first-order thermodynamics is revisited in light of these results.
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spelling pubmed-99953962023-03-10 Past-directed scalar field gradients and scalar-tensor thermodynamics Giusti, Andrea Giardino, Serena Faraoni, Valerio Gen Relativ Gravit Research We refine and slightly enlarge the recently proposed first-order thermodynamics of scalar-tensor gravity to include gravitational scalar fields with timelike and past-directed gradients. The implications and subtleties arising in this situation are discussed and an exact cosmological solution of scalar-tensor theory in first-order thermodynamics is revisited in light of these results. Springer US 2023-03-09 2023 /pmc/articles/PMC9995396/ /pubmed/36911575 http://dx.doi.org/10.1007/s10714-023-03095-7 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Research
Giusti, Andrea
Giardino, Serena
Faraoni, Valerio
Past-directed scalar field gradients and scalar-tensor thermodynamics
title Past-directed scalar field gradients and scalar-tensor thermodynamics
title_full Past-directed scalar field gradients and scalar-tensor thermodynamics
title_fullStr Past-directed scalar field gradients and scalar-tensor thermodynamics
title_full_unstemmed Past-directed scalar field gradients and scalar-tensor thermodynamics
title_short Past-directed scalar field gradients and scalar-tensor thermodynamics
title_sort past-directed scalar field gradients and scalar-tensor thermodynamics
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9995396/
https://www.ncbi.nlm.nih.gov/pubmed/36911575
http://dx.doi.org/10.1007/s10714-023-03095-7
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