An exact model of conformal quintessence
arXiv:astro-ph/0401016 · doi:10.1103/PhysRevD.69.083511
Abstract
A non--minimally coupled quintessence model is investigated and the conditions for a stationary solution to the coincidence problem are obtained. For a conformally coupled scalar field and dissipative matter, a general solution possessing late acceleration is found. It fits rather well the high redshift supernovae data and gives a good prediction of the age of the Universe. Likewise, the cold dark matter component dominates the cosmological perturbations at late times albeit they decrease with expansion.
19 pages, RevTeX 4, 4 figures, to appear in Phys. Rev. D