Effective Field Theory Approach to String Gas Cosmology
arXiv:hep-th/0403075 · doi:10.1088/1475-7516/2004/06/001
Abstract
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.
19 pages, 2 figures, comments added
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