Effective Field Theory Approach to String Gas Cosmology

Details Effective Field Theory Approach to String Gas Cosmology Effective Field Theory Approach to String Gas Cosmology

2004-03-08

arxiv.org/abs/hep-th/0403075v3

JCAP 0406 (2004) 001

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 2 figures, comments added

Scientific paper

10.1088/1475-7516/2004/06/001

We derive the 4D low energy effective field theory for a closed string gas on a time dependent FRW background. We examine the solutions and find that although the Brandenberger-Vafa mechanism at late times no longer leads to radion stabilization, the radion rolls slowly enough that the scenario is still of interest. In particular, we find a simple example of the string inspired dark matter recently proposed by Gubser and Peebles.

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