Study of a Class of Four Dimensional Nonsingular Cosmological Bounces
High Energy Physics - Theory
2009-11-10 v1 Astrophysics
General Relativity and Quantum Cosmology
Abstract
We study a novel class of nonsingular time-symmetric cosmological bounces. In this class of four dimensional models the bounce is induced by a perfect fluid with a negative energy density. Metric perturbations are solved in an analytic way all through the bounce. The conditions for generating a scale invariant spectrum of tensor and scalar metric perturbations are discussed.
Keywords
Cite
@article{arxiv.hep-th/0307068,
title = {Study of a Class of Four Dimensional Nonsingular Cosmological Bounces},
author = {Fabio Finelli},
journal= {arXiv preprint arXiv:hep-th/0307068},
year = {2009}
}
Comments
16 pages, 10 figures