Linear Cosmological Perturbations in D-brane Gases
High Energy Physics - Theory
2009-11-11 v2
Abstract
We consider linear cosmological perturbations on the background of a D-brane gas in which the compact dimensions and the dilaton are stabilized. We focus on long wavelength fluctuations and find that there are no instabilities. In particular, the perturbation of the internal space performs damped oscillations and decays in time. Therefore, the stabilization mechanism based on D-brane gases in string theory remains valid in the presence of linearized inhomogeneities.
Keywords
Cite
@article{arxiv.hep-th/0502133,
title = {Linear Cosmological Perturbations in D-brane Gases},
author = {Ali Kaya},
journal= {arXiv preprint arXiv:hep-th/0502133},
year = {2009}
}
Comments
11 pages, v2: minor changes, references added, to appear in JHEP