UV Perturbations in Brane Gas Cosmology

Details UV Perturbations in Brane Gas Cosmology UV Perturbations in Brane Gas Cosmology

2004-02-02

arxiv.org/abs/hep-th/0402015v1

Phys.Rev. D70 (2004) 023516

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, 5 figures

Scientific paper

10.1103/PhysRevD.70.023516

We consider the effect of the ultraviolet (UV) or short wavelength modes on the background of Brane Gas Cosmology. We find that the string matter sources are negligible in the UV and that the evolution is given primarily by the dilaton perturbation. We also find that the linear perturbations are well behaved and the predictions of Brane Gas Cosmology are robust against the introduction of linear perturbations. In particular, we find that the stabilization of the extra dimensions (moduli) remains valid in the presence of dilaton and string perturbations.

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