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Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions

We investigate modified theories of gravity in the context of teleparallel geometries with possible Gauss–Bonnet contributions. The possible coupling of gravity with the trace of the energy-momentum tensor is also taken into account. This is motivated by the various different theories formulated in...

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Autores principales: Bahamonde, Sebastian, Böhmer, Christian G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5080365/
https://www.ncbi.nlm.nih.gov/pubmed/27829817
http://dx.doi.org/10.1140/epjc/s10052-016-4419-8
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author Bahamonde, Sebastian
Böhmer, Christian G.
author_facet Bahamonde, Sebastian
Böhmer, Christian G.
author_sort Bahamonde, Sebastian
collection PubMed
description We investigate modified theories of gravity in the context of teleparallel geometries with possible Gauss–Bonnet contributions. The possible coupling of gravity with the trace of the energy-momentum tensor is also taken into account. This is motivated by the various different theories formulated in the teleparallel approach and the metric approach without discussing the exact relationship between them. Our formulation clarifies the connections between different well-known theories. For instance, we are able to formulate the correct teleparallel equivalent of Gauss–Bonnet modified general relativity, amongst other results. Finally, we are able to identify modified gravity models which have not been studied in the past. These appear naturally within our setup and would make a interesting starting point for further studies.
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spelling pubmed-50803652016-11-07 Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions Bahamonde, Sebastian Böhmer, Christian G. Eur Phys J C Part Fields Regular Article - Theoretical Physics We investigate modified theories of gravity in the context of teleparallel geometries with possible Gauss–Bonnet contributions. The possible coupling of gravity with the trace of the energy-momentum tensor is also taken into account. This is motivated by the various different theories formulated in the teleparallel approach and the metric approach without discussing the exact relationship between them. Our formulation clarifies the connections between different well-known theories. For instance, we are able to formulate the correct teleparallel equivalent of Gauss–Bonnet modified general relativity, amongst other results. Finally, we are able to identify modified gravity models which have not been studied in the past. These appear naturally within our setup and would make a interesting starting point for further studies. Springer Berlin Heidelberg 2016-10-25 2016 /pmc/articles/PMC5080365/ /pubmed/27829817 http://dx.doi.org/10.1140/epjc/s10052-016-4419-8 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.
spellingShingle Regular Article - Theoretical Physics
Bahamonde, Sebastian
Böhmer, Christian G.
Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title_full Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title_fullStr Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title_full_unstemmed Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title_short Modified teleparallel theories of gravity: Gauss–Bonnet and trace extensions
title_sort modified teleparallel theories of gravity: gauss–bonnet and trace extensions
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5080365/
https://www.ncbi.nlm.nih.gov/pubmed/27829817
http://dx.doi.org/10.1140/epjc/s10052-016-4419-8
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