On Perturbations of Quintom Bounce

Details On Perturbations of Quintom Bounce On Perturbations of Quintom Bounce

2007-11-14

arxiv.org/abs/0711.2187v2

JCAP0803:013,2008

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, 9 figures

Scientific paper

10.1088/1475-7516/2008/03/013

A Quintom universe with an equation-of-state crossing the cosmological constant boundary can provide a bouncing solution dubbed the Quintom Bounce and thus resolve the Big Bang singularity. In this paper, we investigate the cosmological perturbations of the Quintom Bounce both analytically and numerically. We find that the fluctuations in the dominant mode in the post-bounce expanding phase couple to the growing mode of the perturbations in the pre-bounce contracting phase.

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