Study of a Class of Four Dimensional Nonsingular Cosmological Bounces

Details Study of a Class of Four Dimensional Nonsingular Cosmological Bounces Study of a Class of Four Dimensional Nonsingular Cosmological Bounces

2003-07-07

arxiv.org/abs/hep-th/0307068v1

JCAP 0310 (2003) 011

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 10 figures

Scientific paper

10.1088/1475-7516/2003/10/011

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.

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