Bouncing Cosmologies
Astrophysics
2008-12-18 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We review the general features of nonsingular universes ({\em i.e.} those that go from an era of accelerated collapse to an expanding era without displaying a singularity) as well as cyclic universes. We discuss the mechanisms behind the bounce, and analyze examples of solutions that implement these mechanisms. Observational consequences of such regular cosmologies are also considered, with emphasis in the behavior of the perturbations.
Cite
@article{arxiv.0802.1634,
title = {Bouncing Cosmologies},
author = {M. Novello and S. E. Perez Bergliaffa},
journal= {arXiv preprint arXiv:0802.1634},
year = {2008}
}
Comments
Please send comments to novello@cbpf.br with copy to sepbergliaffa@gmail.com