The Equation of State of an Interacting Tachyon

Details The Equation of State of an Interacting Tachyon The Equation of State of an Interacting Tachyon

2005-09-06

arxiv.org/abs/hep-ph/0509044v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures

Scientific paper

We examine the cosmological solutions of a tachyon field non minimally coupled to gravity through an effective Born-Infeld interacting Lagrangian with a power law potential, in order to investigate its equation of state as related to tracking properties. We find exact solutions in the case of a tachyon dominated Universe and when the dominant component of the stress energy tensor is determined by some other perfect fluid.

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