Quintessence and Thermal Matter
Astrophysics
2009-11-10 v2 High Energy Physics - Phenomenology
Abstract
We investigate the effects of thermal interactions on tracking models of quintessence. We show that even Planck-suppressed interactions between matter and the quintessence field can alter its evolution. The dark energy equation of state is in many cases strongly affected by matter couplings. We obtain a bound on the coupling between quintessence and relativistic relic particles such as the photon or neutrino.
Cite
@article{arxiv.astro-ph/0402541,
title = {Quintessence and Thermal Matter},
author = {S. Hsu and B. Murray},
journal= {arXiv preprint arXiv:astro-ph/0402541},
year = {2009}
}
Comments
LaTex, 11 pages, 5 figures. Minor additions. Version to appear in Physics Letters B