Phantom with Born-Infield type Lagrangian

Details Phantom with Born-Infield type Lagrangian Phantom with Born-Infield type Lagrangian

2003-05-23

arxiv.org/abs/hep-th/0305207v2

Phys.Rev. D68 (2003) 043501

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 6 figures, Reference updated, the final version will be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.68.043501

Recent analysis of the observation data indicates that the equation of state of the dark energy might be smaller than -1, which leads to the introduction of phantom models featured by its negative kinetic energy to account for the regime of equation of state $w<-1$. In this paper, we generalize the idea to the Born-Infield type Lagrangian with negative kinetic energy term and give the condition for the potential, under which the late time attractor solution exists and also analyze a viable cosmological model in such a scheme.

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