Dynamical smooth energy fitted by parametrized quintessence

DOI10.1016/S0920-5632(02)80116-5zbMATH Open0997.85003arXivastro-ph/0110489OpenAlexW4232031995MaRDI QIDQ5970187

Publication date: 14 August 2002

Published in: Nuclear Physics. B. Proceedings Supplements (Search for Journal in Brave)

Abstract: This paper proposes two phenomenological quintessence potentials with parameters fitted to the presently observed ratio

a t

of smooth energy to clustered mass and limits on the equation of state parameter

w_{Q} (a) = P / h o q

, for which the quintessence potential is now slow- or fast-rolling. These two potentials are intended to illustrate rather different quintessence phenomenology since tracking and into the near future. Neither can be a fundamental potential derivable from present-day string theory.

Full work available at URL: https://arxiv.org/abs/astro-ph/0110489

zbMATH Keywords

attractor potentials

Mathematics Subject Classification ID

Astrophysical cosmology (85A40)