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arXiv · astro-ph/0307338

1/R gravity and Scalar-Tensor Gravity

Takeshi Chiba
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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.

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Takeshi Chiba. 2003-09-09. 1/R gravity and Scalar-Tensor Gravity. https://doi.org/10.1016/j.physletb.2003.09.033

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