Cosmological acceleration from a gas of strings
High Energy Physics - Theory
2009-11-05 v1
Abstract
In string gas cosmology, the extra dimensions of the underlying theory are kept at a microscopic scale by a gas of strings. In the matter-dominated era, however, dust pressure can lead to oscillations of the extra dimensions and to acceleration in the three visible dimensions, even with a vanishing cosmological term. We review the resulting oscillating expansion history, that provides an acceptable fit to the observed accelerated expansion of the Universe.
Keywords
Cite
@article{arxiv.0907.1342,
title = {Cosmological acceleration from a gas of strings},
author = {Francesc Ferrer},
journal= {arXiv preprint arXiv:0907.1342},
year = {2009}
}
Comments
6 pages, 2 figures. Proceedings of the GGI Dark Matter and Dark Energy conference