Erratum: Slow-roll thawing quintessence Phys. Rev. D79, 083517 (2009)

摘要

We derive slow-roll conditions for thawing quintessence. We solve theequation of motion of $phi$ for a Taylor expanded potential (up to thequadratic order) in the limit where the equation of state $w$ is close to -1 toderive the equation of state as a function of the scale factor. We find thatthe evolution of $phi$ and hence $w$ are described by only two parameters. Theexpression for $w(a)$, which can be applied to general thawing models,coincides precisely with that derived recently by Dutta and Scherrer forhilltop quintessence. The consistency conditions of $|w+1|ll 1$ are derived.The slow-roll conditions for freezing quintessence are also derived.