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Constraining f(R) Gravity as a Scalar Tensor Theory

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arxiv astro-ph/0612569 v1 pith:PPMMY3UI submitted 2006-12-20 astro-ph gr-qc

Thomas Faulkner (MIT) , Max Tegmark (MIT) , Emory F. Bunn (Richmond) , Yi Mao (MIT) This is my paper · ORCID
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keywords gravityaccelerationconstraintsscalartheoriesappearsbangcases
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We search for viable f(R) theories of gravity, making use of the equivalence between such theories and scalar-tensor gravity. We find that models can be made consistent with solar system constraints either by giving the scalar a high mass or by exploiting the so-called chameleon effect. However, in both cases, it appears likely that any late-time cosmic acceleration will be observationally indistinguishable from acceleration caused by a cosmological constant. We also explore further observational constraints from, e.g., big bang nucleosynthesis and inflation.

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Cited by 5 Pith papers

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