Quintessence with Kaluza-Klein type couplings to matter and an isotropy-violating vector field
General Relativity and Quantum Cosmology
2013-03-12 v1 High Energy Physics - Theory
Abstract
We study the dynamics of a scalar field with Kaluza-Klein type couplings to cold dark matter and an isotropy-violating vector field. The vector coupling, , has been studied thoroughly in the context of inflation recently. We generalize the model to a dark energy context and study the cosmological consequences. We find a rich set of exact anisotropic power-law solutions and identify a strong vector coupling regime where the anisotropy is controllable and all solutions are close to the LCDM limit.
Keywords
Cite
@article{arxiv.1303.2469,
title = {Quintessence with Kaluza-Klein type couplings to matter and an isotropy-violating vector field},
author = {Mikjel Thorsrud},
journal= {arXiv preprint arXiv:1303.2469},
year = {2013}
}
Comments
3 pages, 1 figure. Contribution to the proceedings of the 13th Marcel Grossmann Meeting (MG13), Stockholm, 1-7 July 2012