Accelerating universe in brane gravity with a confining potential
General Relativity and Quantum Cosmology
2008-11-26 v3 High Energy Physics - Theory
Abstract
We construct the Einstein field equations on a 4-dimensional brane embedded in an -dimensional bulk where the matter fields are confined to the brane by means of a confining potential. As a result, an extra term in the Friedmann equation in a -dimensional bulk appears that may be interpreted as the X-matter, providing a possible phenomenological explanation for the acceleration of the universe. The study of the relevant observational data suggests good agreement with the predictions of this model.
Cite
@article{arxiv.gr-qc/0607067,
title = {Accelerating universe in brane gravity with a confining potential},
author = {M. Heydari-Fard and M. Shirazi and S. Jalalzadeh and H. R. Sepangi},
journal= {arXiv preprint arXiv:gr-qc/0607067},
year = {2008}
}
Comments
10 pages, 2 figures, to appear in Phys. Lett. B