Disformal quintessence
Astrophysics
2008-11-13 v1
Abstract
A canonic scalar field minimally coupled to a disformal metric generated by the field itself is considered. Causality and stability conditions are derived for such a field. Cosmological effects are studied and it is shown that the disformal modification could viably trigger an acceleration after a scaling matter era, thus possibly alleviating the coincidence problem.
Cite
@article{arxiv.0811.1957,
title = {Disformal quintessence},
author = {Tomi S. Koivisto},
journal= {arXiv preprint arXiv:0811.1957},
year = {2008}
}
Comments
5 pages, 2 figures. Contribution to the TSPU anniversary volume "The Problems of Modern Cosmology" on the occasion of the 50th birthday of Prof. S. D. Odintsov