Bahamonde Beltran, SA;
(2018)
Generalised nonminimally gravity-matter coupled theory.
European Physical Journal C
, 78
, Article 326. 10.1140/epjc/s10052-018-5793-1.
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Abstract
In this paper, a new generalised gravity-matter coupled theory of gravity is presented. This theory is constructed by assuming an action with an arbitrary function f(T,B,Lm)f(T,B,Lm) which depends on the scalar torsion T, the boundary term B=∇μTμB=∇μTμ and the matter Lagrangian LmLm . Since the function depends on B which appears in R=−T+BR=−T+B , it is possible to also reproduce curvature-matter coupled models such as f(R,Lm)f(R,Lm) gravity. Additionally, the full theory also contains some interesting new teleparallel gravity-matter coupled theories of gravities such as f(T,Lm)f(T,Lm) or C1T+f(B,Lm)C1T+f(B,Lm) . The complete dynamical system for flat FLRW cosmology is presented and for some specific cases of the function, the corresponding cosmological model is studied. When it is necessary, the connection of our theory and the dynamical system of other well-known theories is discussed.
| Type: | Article |
|---|---|
| Title: | Generalised nonminimally gravity-matter coupled theory |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-018-5793-1 |
| Publisher version: | https://doi.org/10.1140/epjc/s10052-018-5793-1 |
| Language: | English |
| Additional information: | Copyright © The Author(s) 2018. Open Access: This 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. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10047815 |
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