Evolution of density perturbations in double exponential quintessence models
Astrophysics
2009-06-23 v1
Abstract
In this work we investigate the evolution of matter density perturbations for quintessence models with a self-interaction potential that is a combination of exponentials. One of the models is based on the Einstein theory of gravity, while the other is based on the Brans-Dicke scalar tensor theory. We constrain the parameter space of the models using the determinations for the growth rate of perturbations derived from data of the 2-degree Field Galaxy Redshift Survey.
Cite
@article{arxiv.0707.2097,
title = {Evolution of density perturbations in double exponential quintessence models},
author = {Tame Gonzalez and Rolando Cardenas and Israel Quiros and Yoelsy Leyva},
journal= {arXiv preprint arXiv:0707.2097},
year = {2009}
}
Comments
5 pages, 3 eps figures