Constrainingf(R)gravity as a scalar-tensor theory

2006/12/20 by Thomas Faulkner, Max Tegmark, Emory F. Bunn +1 · 12 citations
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements #astro-ph #gr-qc

paper · pdf · doi:10.1103/physrevd.76.063505

published as Phys.Rev.D76:063505,2007 · 15 pages, 5 figures

arxiv created 2006/12/20 · openalex publication_date 2007/09/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

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.

Citations

• Inflation dynamics and reheating
• Mach's Principle and a Relativistic Theory of Gravitation
• A modification of the Newtonian dynamics as a possible alternative to the hidden mass hypothesis
• Solar system testsdorule out1/Rgravity
• Inflation and the conformal structure of higher-order gravity theories

Cited by

• Solar system constraints on f(G) gravity models
• Thin accretion disks inf(R)modified gravity models
• Problems with Modified Theories of Gravity, as Alternatives to Dark Energy
• Classifying and avoiding singularities in the alternative gravity dark energy models
• Phantom crossing, equation-of-state singularities, and local gravity constraints in f(R) models
• Solar System constraints on a cosmologically viable f(R) theory
• Wormhole geometries inf(R)modified theories of gravity
• Observational signatures off(R)dark energy models that satisfy cosmological and local gravity constraints
• Dispersion of growth of matter perturbations inf(R)gravity
• Perihelion precession for modified Newtonian gravity
• Inflationary paradigm in trouble after Planck2013
• f(R)theories of gravity