Cosmology of Dilatonic Brane World
High Energy Physics - Theory
2009-10-31 v2 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We study cosmological solutions in the dilatonic brane world models. The effective four-dimensional equations on the brane are analyzed for the models with one positive tension brane and two branes with tensions of opposite signs. Just as in the non-dilatonic brane case, the conventional Friedmann equations of the four-dimensional universe are reproduced to the leading order in matter energy density for the model with one brane and the introduction of a radion potential is required in order to reproduce the Friedmann equations with the correct sign for the model with two branes.
Keywords
Cite
@article{arxiv.hep-th/0012246,
title = {Cosmology of Dilatonic Brane World},
author = {Donam Youm},
journal= {arXiv preprint arXiv:hep-th/0012246},
year = {2009}
}
Comments
11 pages, LaTeX, references added