Viable Singularity-Free f(R) Gravity Without a Cosmological Constant
Cosmology and Nongalactic Astrophysics
2018-09-18 v1 General Relativity and Quantum Cosmology
Abstract
Several authors have argued that self-consistent gravity models distinct from CDM are almost ruled out. Confronting such claims, we present a particular two-parameter model that: (a) is cosmologically viable and distinguishable from CDM; (b) is compatible with the existence of relativistic stars; (c) is free of singularities of the Ricci scalar during the cosmological evolution and (d) allows the addition of high curvature corrections that could be relevant for inflation.
Keywords
Cite
@article{arxiv.0905.1941,
title = {Viable Singularity-Free f(R) Gravity Without a Cosmological Constant},
author = {V Miranda and Sergio E. Joras and Ioav Waga and Miguel Quartin},
journal= {arXiv preprint arXiv:0905.1941},
year = {2018}
}
Comments
4 pages, 3 figures, accepted for publication in Phys. Rev. Lett