Gravitational potential in Palatini formulation of modified gravity

Details Gravitational potential in Palatini formulation of modified gravity Gravitational potential in Palatini formulation of modified gravity

2003-11-06

arxiv.org/abs/gr-qc/0311019v1

Gen.Rel.Grav. 36 (2004) 1947-1954

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, no figures

Scientific paper

10.1023/B:GERG.0000036052.81522.

General Relativity has so far passed almost all the ground-based and solar-system experiments. Any reasonable extended gravity models should consistently reduce to it at least in the weak field approximation. In this work we derive the gravitational potential for the Palatini formulation of the modified gravity of the L(R) type which admits a de Sitter vacuum solution. We conclude that the Newtonian limit is always obtained in those class of models and the deviations from General Relativity is very small for a slowly moving source.

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