Dark energy cosmologies for codimension-two branes
High Energy Physics - Theory
2010-04-05 v1
Abstract
A six-dimensional universe with two branes in the "football-shaped" geometry leads to an almost realistic cosmology. We describe a family of exact solutions with time dependent characteristic size of internal space. After a short inflationary period the late cosmology is either of quintessence type or turns to a radiation dominated Friedmann universe where the cosmological constant appears as a free integration constant of the solution. The radiation dominated universe with relativistic fermions is analyzed in detail, including its dimensional reduction.
Keywords
Cite
@article{arxiv.hep-th/0501049,
title = {Dark energy cosmologies for codimension-two branes},
author = {Jan-Markus Schwindt and Christof Wetterich},
journal= {arXiv preprint arXiv:hep-th/0501049},
year = {2010}
}
Comments
18 pages