Quintessential brane cosmology
High Energy Physics - Theory
2008-11-26 v2 Astrophysics
General Relativity and Quantum Cosmology
Abstract
We study a class of braneworlds where the cosmological evolution arises as the result of the movement of a three-brane in a five-dimensional static dilatonic bulk, with and without reflection symmetry. The resulting four-dimensional Friedmann equation includes a term which, for a certain range of the parameters, effectively works as a quintessence component, producing an acceleration of the universe at late times. Using current observations and bounds derived from big-bang nucleosynthesis we estimate the parameters that characterize the model.
Keywords
Cite
@article{arxiv.hep-th/0109038,
title = {Quintessential brane cosmology},
author = {K. E. Kunze and M. A. Vazquez-Mozo},
journal= {arXiv preprint arXiv:hep-th/0109038},
year = {2008}
}
Comments
29 pages. LaTeX. 5 postscript figures included. v2 typos corrected and references added. Final version to appear in Phys.Rev.D