Singular Bouncing Cosmology from Gauss-Bonnet Modified Gravity
General Relativity and Quantum Cosmology
2015-12-23 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We study how a cosmological bounce with a Type IV singularity at the bouncing point, can be generated by a classical vacuum gravity. We focus our investigation on the behavior of the vacuum theory near the Type IV singular bouncing point and also we address the stability of the resulting solution, by treating the equations of motion as a dynamical system. In addition, we investigate how the scalar perturbations of the background metric evolve, emphasizing to cosmological times near the Type IV singular bouncing point. Finally, we also investigate which mimetic vacuum gravity can describe the singular bounce cosmology.
Cite
@article{arxiv.1509.05827,
title = {Singular Bouncing Cosmology from Gauss-Bonnet Modified Gravity},
author = {V. K. Oikonomou},
journal= {arXiv preprint arXiv:1509.05827},
year = {2015}
}
Comments
Significantly expanded perturbations section, important references added, PRD accepted