The Equation of State of an Interacting Tachyon
High Energy Physics - Phenomenology
2007-05-23 v1 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
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.
Cite
@article{arxiv.hep-ph/0509044,
title = {The Equation of State of an Interacting Tachyon},
author = {G. L. Alberghi and A. Tronconi},
journal= {arXiv preprint arXiv:hep-ph/0509044},
year = {2007}
}
Comments
9 pages, 2 figures