Solar system experiments do not yet veto modified gravity models

By Valerio Faraoni. 2006

164 citations recorded by the source corpus.

The dynamical equivalence between modified and scalar-tensor gravity theories is revisited and it is concluded that it breaks down in the limit to general relativity. A gauge-independent analysis of cosmological perturbations in both classes of theories lends independent support to this conclusion. As a consequence, the PPN formalism of scalar-tensor gravity and Solar System experiments do not veto modified gravity, as previously thought.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/72bb39c4ce716c40e9730680cd54fddec66bbbc4

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Citations in the corpus

f(R) Theories (2010, background): “This means that f (R) gravity models with the light scalaron mass (Mrc ≪ 1) do not satisfy local gravity constraints [469, 470, 245, 233, 154, 448, 330, 332].”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, background): “While the late-time cosmic acceleration is possible in these models, it has become clear that they do not satisfy local gravity constraints because of the instability associated with negative values of f,R R (Chiba 2003; Dolgov and Kawasaki 2003; Soussa and Woodard 2004; Olmo 2005; Faraoni 2006).”