Attractors in dark energy models with Born-Infeld scalar field

AUTOR(ES)

Batista, Ronaldo Carlotto, Abramo, Luís Raul Weber, Pereira, Thiago dos Santos

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2005-12

RESUMO

We derive, in the large scale limit, analytical solutions for a dark energy model described by the Born-Infeld field plus a perfect fluid, both for homogeneous background and first order perturbations. These analytical results are compared with numerical solutions in a model with radiation, pressureless matter and the field. We investigate the non-adiabatic perturbed pressure associated with this attractor and whether it corresponds to isocurvature contribution.

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