Cosmological evolution with brane-bulk energy exchange
High Energy Physics - Theory
2009-11-07 v2 General Relativity and Quantum Cosmology
Abstract
The consequences for the brane cosmological evolution of energy exchange between the brane and the bulk are analysed in detail, in the context of a non-factorizable background geometry with vanishing effective cosmological constant on the brane. A rich variety of brane cosmologies is obtained, depending on the precise mechanism of energy transfer, the equation of state of brane-matter and the spatial topology. An accelerating era is generically a feature of our solutions. In the case of low-density flat universe more dark matter than in the conventional FRW picture is predicted. Spatially compact solutions are found to delay their recollapse.
Keywords
Cite
@article{arxiv.hep-th/0207060,
title = {Cosmological evolution with brane-bulk energy exchange},
author = {E. Kiritsis and G. Kofinas and N. Tetradis and T. N. Tomaras and V. Zarikas},
journal= {arXiv preprint arXiv:hep-th/0207060},
year = {2009}
}
Comments
20 Pages, JHEP class