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Author  |
Olmo, G.J.; Pinto, M.A.S. |
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Title |
On Energy-Momentum Conservation in Non-Minimal Geometry-Matter Coupling Theories |
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Journal Article |
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Year |
2025 |
Publication |
Universe |
Abbreviated Journal |
Universe |
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Volume |
11 |
Issue |
12 |
Pages |
386 - 10pp |
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Keywords |
matter-curvature couplings; modified gravity; nonlinear electrodynamics |
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Abstract |
In this work, we discuss the conditions that allow the establishment of an equivalence between f(R,T)=R+lambda h(T) gravity models and General Relativity (GR) coupled to a modified matter sector. We do so by considering a D-dimensional spacetime and the matter sector described by nonlinear electrodynamics and/or a scalar field. We find that, for this particular family of models, the action and field equations can indeed be written in terms of a modified matter source within GR. However, when several matter sources are combined, this interpretation is no longer possible if h(T) is a nonlinear function, due to the emergence of crossed terms that mix together the scalar and vector sectors. |
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Address |
[Olmo, Gonzalo J.] Univ Valencia, Inst Fis Corpuscular IFIC, CSIC, Paterna 46980, Spain, Email: gonzalo.olmo@uv.es; |
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Publisher |
Mdpi |
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Language |
English |
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Notes |
WOS:001647514600001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6999 |
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