Braneworld cosmology in the sourced-Taub background
General Relativity and Quantum Cosmology
2010-03-12 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
A new braneworld in the sourced-Taub background is proposed. The gravity field equations in the internal source region and external vacuum region are investigated, respectively. We find that the equation of state for the effective dark energy of a dust brane in the source region can cross the phantom divide . Furthermore, there is a drop on diagram, which presents a possible mechanism for the recent direct data of .
Cite
@article{arxiv.0904.0067,
title = {Braneworld cosmology in the sourced-Taub background},
author = {Hongsheng Zhang and Hyerim Noh},
journal= {arXiv preprint arXiv:0904.0067},
year = {2010}
}
Comments
10 pages, 3 figures, v2: a section to review the previous results on the source of Taub space added, PLB in press