Constraining f(R) Gravity as a Scalar Tensor Theory

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.

15 pages, 5 figures

References in corpus (3)

• The Large Scale Structure of f(R) Gravity
• Solar System constraints to general f(R) gravity
• Solar System tests DO rule out 1/R gravity

Cited by in corpus (50)

• Extra force in $f(R)$ modified theories of gravity
• Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion
• Modified f(R) gravity unifying R^m inflation with \LambdaCDM epoch
• Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints
• A Parameterized Post-Friedmann Framework for Modified Gravity
• Construction of cosmologically viable f(G) gravity models
• Spherically symmetric solutions in f(R)-gravity via Noether Symmetry Approach
• f(R) Gravity and Chameleon Theories
• Modified gravity with arbitrary coupling between matter and geometry
• Solar system and equivalence principle constraints on f(R) gravity by chameleon approach
• The future evolution and finite-time singularities in $F(R)$-gravity unifying the inflation and cosmic acceleration
• Non-linear Evolution of f(R) Cosmologies III: Halo Statistics
• Dark matter as a geometric effect in f(R) gravity
• Non-linear evolution of f(R) cosmologies II: power spectrum
• Relativistic stars in f(R) gravity, and absence thereof
• Junction Conditions in f(R) Theories of Gravity
• Weak Lensing Probes of Modified Gravity
• Constraining Interactions in Cosmology's Dark Sector
• Constraints on scalar-tensor models of dark energy from observational and local gravity tests
• Cosmological Constraints on f(R) Acceleration Models
• Thin accretion disks in f(R) modified gravity models
• Classifying and avoiding singularities in the alternative gravity dark energy models
• Generalized virial theorem in f(R) gravity
• Aspects of cosmological expansion in F(R) gravity models
• Density perturbations in f(R) gravity theories in metric and Palatini formalisms
• Adiabatic instability in coupled dark energy-dark matter models
• Thermodynamics in $F(R)$ gravity with phantom crossing
• Dark energy, inflation and dark matter from modified F(R) gravity
• Initial and final de Sitter universes from modified $f(R)$ gravity
• Can higher curvature corrections cure the singularity problem in f(R) gravity?
• The Cosmology of Ricci-Tensor-Squared Gravity in the Palatini Variational Approach
• Hydrogen atom in Palatini theories of gravity
• Delicate f(R) gravity models with disappearing cosmological constant and observational constraints on the model parameters
• How (Not) to Palatini
• $f(R)$ gravity constrained by PPN parameters and stochastic background of gravitational waves
• The effect of modified gravity on weak lensing
• A sub-horizon framework for probing the relationship between the cosmological matter distribution and metric perturbations
• Energy-momentum complexes in f(R) theories of gravity
• New interactions in the dark sector mediated by dark energy
• Stellar configurations in f(R) theories of gravity
• Revisiting chameleon gravity - thin-shells and no-shells with appropriate boundary conditions
• Standard Cosmological Evolution in a Wide Range of f(R) Models
• Perihelion precession for modified Newtonian gravity
• Generalized Israel Junction Conditions for a Fourth-Order Brane World
• Observational Bounds on Modified Gravity Models
• Stable, Accelerating Universes in Modified Gravity
• Testing Alternative Theories of Dark Matter with the CMB
• Problems with Modified Theories of Gravity, as Alternatives to Dark Energy
• On the stability of spherically symmetric spacetimes in metric f(R) gravity
• Dynamics of Solutions of $f(R)$ Theory