Quintessence and Thermal Matter

Details Quintessence and Thermal Matter Quintessence and Thermal Matter

2004-02-23

arxiv.org/abs/astro-ph/0402541v2

Phys.Lett. B595 (2004) 16-21

Astronomy and Astrophysics

Astrophysics

LaTex, 11 pages, 5 figures. Minor additions. Version to appear in Physics Letters B

Scientific paper

10.1016/j.physletb.2004.06.053

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.

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