Constraining f ( R ) gravity as a scalar-tensor theory

By T. Faulkner, Max Tegmark, E. Bunn, Y. Mao. 2006

333 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Oceanography

View Paper: https://www.semanticscholar.org/paper/ac64893f8741797d06786a2206e3b17f0ae22eba

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

In Oceanography

Citations in the corpus

Cosmology and Fundamental Physics with the Euclid Satellite (2012, background): “2007b, a), and for the stability of cosmological perturbations (Carroll et al. 2006; Song et al. 2007a; Bean et al. 2007; Faulkner et al. 2007).”
Stellar structure models in modified theories of gravity: Lessons and challenges (2019, result): “Moreover, the numerical analysis of other f (R) models, such as f (R) = R − µ4/R + αR2, f (R) = R − βRn, or f (R) = R + αR1/2 [113], seems to support the inconsistency of such models with Solar system experiments, as they produce similar results in that region as the 1/R one.”
f(R) Theories (2010, background): “The experiments for the violation of equivalence principle as well as a number of solar system experiments place tight constraints on dark energy models based on f (R) theories [306, 251, 587, 134, 101].”