A new approach in stability analysis: case study: tachyon cosmology with non-minimally coupled scalar field-matter

Abstract

We study the general properties of attractors in a cosmological model with tachyonic potential and a scalar field non-minimally coupled to matter. A general analytic formulation is given to derive fixed points with a discussion on their stability. We also check the consistency of the model by fitting it to the supernovae type Ia data.

21 pages, 30 figures; accepted for publication in Phys. Rev. D

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