Energy conditions constraints on a class of f(R)-gravity
arXiv:0807.2443 · doi:10.1142/S0218271810017639
Abstract
We present and discuss the bounds from the energy conditions on a general f(R) functional form in the framework of metric variational approach. As a concrete application of the energy conditions to locally homogeneous and isotropic f(R)-cosmology, the recent estimated values of the deceleration and jerk parameters are used to examine the bounds from the weak energy condition on the free parameter of the family of f(R)=\sqrt{R^2 - R_0^2} gravity theory.
6 pages. To appear in Int. J. Mod. Phys. D. Talk delivered at the 3rd International Workshop on Astronomy and Relativistic Astrophysics. V2: references added
References in corpus (35)
- Introduction to Modified Gravity and Gravitational Alternative for Dark Energy
- Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
- Disappearing cosmological constant in f(R) gravity
- Extra force in modified theories of gravity
- Modified f(R) gravity consistent with realistic cosmology: from matter dominated epoch to dark energy universe
- Extended Theories of Gravity and their Cosmological and Astrophysical Applications
- Class of viable modified gravities describing inflation and the onset of accelerated expansion
- Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
- Conditions for the cosmological viability of f(R) dark energy models
- Are f(R) dark energy models cosmologically viable ?
- Modified f(R) gravity unifying R^m inflation with \LambdaCDM epoch
- Limit to General Relativity in f(R) theories of gravity
- Energy conditions in f(R)-gravity
- A kinematical approach to dark energy studies
- Modified non-local-F(R) gravity as the key for the inflation and dark energy
- A f(R) gravity without cosmological constant
- Energy conditions in the epoch of galaxy formation
- f(R) gravity theories in Palatini formalism: cosmological dynamics and observational constraints
- Viability of f(R) Theories with Additional Powers of Curvature
- Violation of the Equivalence Principle in Modified Theories of Gravity
- Constraining f(R) theories with the energy conditions
- The generalized second law of thermodynamics in the accelerating universe
- Power-laws f(R) theories are cosmologically unacceptable
- Energy Conditions and Cosmic Acceleration
- The Cosmology of Ricci-Tensor-Squared Gravity in the Palatini Variational Approach
- Curvature singularities, tidal forces and the viability of Palatini f(R) gravity
- Energy conditions and current acceleration of the universe
- Energy Conditions and Supernovae Observations
- The Weak Energy Condition and the Expansion History of the Universe
- Modified gravity with
- Lookback time bounds from energy conditions
- How far is it to a sudden future singularity of pressure?
- Consistency of Gravity with the Cosmological Observations in Palatini Formalism
- Scale Factor Dependent Equations of State for Curvature Inspired Dark Energy, Phantom Barrier and Late Cosmic Acceleration
- Energy conditions bounds and their confrontation with supernovae data
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- Energy Conditions in Modified Gravity
- Energy conditions bounds on f(T) gravity
- Energy Conditions in Gravity
- Regular black holes in gravity coupled to nonlinear electrodynamics
- Charged Compact Stars in Gravity
- Analysis with observational constraints in -cosmology in gravity
- Influence of Models on the Existence of Anisotropic Self-Gravitating Systems
- On the non-attractive character of gravity in f(R) theories
- Strong energy condition and the repulsive character of f(R) gravity
- Energy conditions in gravity with non-minimal torsion-matter coupling
- Energy Conditions in Modified Gravity with Non-minimal Coupling to Matter
- Energy Constraints and Phenomenon of Cosmic Evolution in Framework
- Cosmology with Hu-Sawicki gravity in Palatini Formalism
- Energy conditions in the theory of gravity
- Anisotropic Spheres Via Embedding Approach in Gravity
- Future dynamics in f(R) theories
- On tidal forces in f(R) theories of gravity
- Reconstruction of gravity model via the Raychaudhuri equation
- Cosmological Consequences of Exponential Gravity in Palatini Formalism
- Note on the Gauss-Bonnet braneworld scenario
- Charged Compact Stars in Extended Gravity
- Looking for empty topological wormhole spacetimes in -modified gravity
- Energy Constraints and Cosmology
- Impact of curvature based geometric constraints on theory
- A complete study of conformally flat pseudo-symmetric spacetimes in the theory of F(R)-gravity
- Energy Conditions in Extended Gravity
- Cylindrically Symmetric Scalar Field and its Lyapunov stability in General Relativity