Limits on the parameters of the equation of state for interacting dark energy
arXiv:1004.2360 · doi:10.1016/j.physletb.2010.03.087
Abstract
Under the assumption that cold dark matter and dark energy interact with each other through a small coupling term, $Q$, we constrain the parameter space of the equation of state $w$ of those dark energy fields whose variation of the field since last scattering do not exceed Planck's mass. We use three parameterizations of $w$ and two different expressions for $Q$. Our work extends previous ones.
18 pages, 11 figures, accepted for publication on Physics Letters B