1/R gravity and scalar-tensor gravity

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Nov 2003Embargo end date: 01 Jan 2003 English Publisher:Elsevier BVJournal:Physics Letters B, volume 575, pages 1-3 (issn: 0370-2693,

Copyright policy )Funded by:FCT | D4

Authors: Chiba, Takeshi;

doi: 10.1016/j.physletb.2003.09.033 , 10.48550/arxiv.astro-ph/0307338

arXiv: astro-ph/0307338

1/R gravity and scalar-tensor gravity

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Abstract

We point out that extended gravity theories, the Lagrangian of which is an arbitrary function of scalar curvature $R$, are equivalent to a class of the scalar tensor theories of gravity. The corresponding gravity theory is $ω=0$ Brans-Dicke gravity with a potential for the Brans-Dicke scalar field, which is not compatible with solar system experiments if the field is very light: the case when such modifications are important recently.

4 pages, to appear in PLB

Related Organizations

Kyoto University
Japan

Keywords

scalar-curvature dependence, Nuclear and High Energy Physics, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Brans-Dicke scalar field, Astrophysics (astro-ph), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, Relativistic gravitational theories other than Einstein's, including asymmetric field theories, General Relativity and Quantum Cosmology

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