Effective cosmological "constant " and quintessence
Abstract
Description
In this paper we present exactly solved extended quintessence models; furthermore, through a dynamical effective Q-cosmological "constant", we recover some of the L decaying cases found in the literature. Finally we introduce a sort of complementarity between the Q-dominated or L-dominated expansions of the Universe.
11 LaTeX Pages, including 4 Encapsulated Postscript Figures, submitted to Phys. Rev. Letter
11 LaTeX Pages, including 4 Encapsulated Postscript Figures, submitted to Phys. Rev. Letter