Evolution of density perturbations in double exponential quintessence models

Details Evolution of density perturbations in double exponential quintessence models Evolution of density perturbations in double exponential quintessence models

2007-07-13

arxiv.org/abs/0707.2097v1

Astrophys.Space Sci.310:13-18,2007

Astronomy and Astrophysics

Astrophysics

5 pages, 3 eps figures

Scientific paper

10.1007/s10509-007-9389-8

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.

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