A class of simple bouncing and late-time accelerating cosmologies in f(R) gravity
arXiv:1711.01398 · doi:10.1142/S0218271818500554
Abstract
We consider the field equations for a flat FRW cosmological model, in a generic gravity model and cast them into a, completely normalized-dimensionless, system of O.D.Es for the scale factor and the function , with respect to the scalar curvature . It is shown that under reasonable assumptions one can produce simple analytical and numerical solutions describing bouncing cosmological models where in addition there are late-time accelerating. Possibility of extending these results is briefly discussed.
16 pages, 8 figures, LaTeX, submitted to IJMPD
References in corpus (21)
- f(R,T) gravity
- Extended Theories of Gravity and their Cosmological and Astrophysical Applications
- Palatini Approach to Modified Gravity: f(R) Theories and Beyond
- Accelerating cosmologies from non-local higher-derivative gravity
- Bouncing Cosmologies in Palatini Gravity
- Aspects of cosmological expansion in F(R) gravity models
- Matter Bounce Loop Quantum Cosmology from Gravity
- Dynamics of f(R)-cosmologies containing Einstein static models
- Deceleration versus Acceleration Universe in Different Frames of Gravity
- Accelerating Universe in Modified Theories of Gravity
- TASI Lectures on Inflation
- f(R) gravity: successes and challenges
- Cyclic cosmology from Lagrange-multiplier modified gravity
- Reconstructing a theory from the -Attractors
- CDM Bounce Cosmology without CDM: the case of modified gravity
- Higher Powers in Gravitation
- Future dynamics in f(R) theories
- A Born-Infeld-like f(R) gravity
- A numerical approach to model independently reconstruct functions through cosmographic data
- Quantum cosmology of quadratic f(R) theories with a FRW metric
- Investigation of Bouncing Universe and Phantom Crossing in Modified Gravity Coupled with Weyl Tensor and its Reconstruction