Standard Cosmology from Sigma-Model
High Energy Physics - Theory
2009-10-31 v4
Abstract
We investigate (4+1)- and (5+0)-dimensional gravity coupled to a non-compact scalar field sigma-model and a perfect fluid within the context of the Randall-Sundrum scenario. We find cosmological solutions with a rolling fifth radius and a family of warp factors. Included in this family are both the original Randall-Sundrum solution and the self-tuning solution of Kachru, Schulz and Silverstein. Our solutions exhibit conventional cosmology.
Cite
@article{arxiv.hep-th/0003299,
title = {Standard Cosmology from Sigma-Model},
author = {Conall Kennedy and Emil M. Prodanov},
journal= {arXiv preprint arXiv:hep-th/0003299},
year = {2009}
}
Comments
11 pages, 1 figure, LaTeX; references added, version to appear in Phys. Lett. B