Non-minimal kinetic coupling and the phenomenology of dark energy

Details Non-minimal kinetic coupling and the phenomenology of dark energy Non-minimal kinetic coupling and the phenomenology of dark energy

2010-09-20

arxiv.org/abs/1009.3964v2

Class.Quant.Grav.28:025006,2011

Physics

High Energy Physics

High Energy Physics - Theory

27 pages, 2 figures, references added, revised version, to appear in CQG

Scientific paper

10.1088/0264-9381/28/2/025006

We study a model of scalar field with a general non-minimal kinetic coupling to itself and to the curvature. The cosmological dynamics of this model and the issue of accelerated expansion is analyzed. Solutions giving rise to power law expansion have been found. By constraining the potential of the model, we obtained a variety of solutions corresponding to phenomenologically acceptable models of dark energy, like the $\Lambda$CDM model, variable cosmological constant model VCC, FRW with two dimensional topological defects, FRW with phantom dark energy, showing that this model with the appropriate potential in each case, can describe a rich variety of dynamical scenarios.

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