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arXiv · 0907.0185

Dirac-Born-Infeld Field Trapped in the Braneworld

Ricardo Garcia-Salcedo·Dania Gonzalez·Tame Gonzalez·Claudia Moreno·Israel Quiros
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Abstract

We apply the dynamical systems tools to study the (linear) cosmic dynamics of a Dirac-Born-Infeld-type field trapped in the braneworld. We focus,exclusively, in Randall-Sundrum and in Dvali-Gabadadze-Porrati brane models. We analyze the existence and stability of asymptotic solutions for the AdS throat and the quadratic potential and a particular choice of the warp factor and of the potential for the DBI field ($f(ϕ)=1/V(ϕ)$). It is demonstrated, in particular, that in the ultra-relativistic approximation matter-scaling and scalar field-dominated solutions always arise. In the first scenario the empty universe is the past attractor, while in the second model the past attractor is the matter-dominated phase.

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Ricardo Garcia-Salcedo, Dania Gonzalez, Tame Gonzalez, Claudia Moreno, Israel Quiros. 2010-12-22. Dirac-Born-Infeld Field Trapped in the Braneworld. https://arxiv.org/abs/0907.0185

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