A constant equation of state for quintessence ?
arXiv:gr-qc/9908071 · doi:10.1142/S0218271801000779
Abstract
Quintessence is often invoked to explain the universe acceleration suggested by the type Ia supernovae observations. The aim of this letter is to study the validity of using a constant equation of state for quintessence models. We shall show that this hypothesis strongly constraint the form of the scalar potential.
9 pages, no figures. Submitted to IJMPD. Typos corrected