Interacting Quintessence
Astrophysics
2008-11-26 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We demonstrate that a suitable coupling between a quintessence scalar field and a pressureless cold dark matter (CDM) fluid leads to a constant ratio of the energy densities of both components which is compatible with an accelerated expansion of the Universe.
Keywords
Cite
@article{arxiv.astro-ph/0105479,
title = {Interacting Quintessence},
author = {Winfried Zimdahl and Diego Pavón and Luis P. Chimento},
journal= {arXiv preprint arXiv:astro-ph/0105479},
year = {2008}
}
Comments
12 pages, LaTeX; new material on the stability analysis and on the interaction potential added, reference list enlarged and updated; to be published in PLB