Phantom Behavior Bounce with Tachyon and Non-minimal Derivative Coupling
General Relativity and Quantum Cosmology
2015-06-03 v1 High Energy Physics - Theory
Abstract
The bouncing cosmology provides a successful solution of the cosmological singularity problem. In this paper, we study the bouncing behavior of a single scalar field model with tachyon field non-minimally coupled to itself, its derivative and to the curvature. By utilizing the numerical calculations we will show that the bouncing solution can appear in the universe dominated by such a quintom matter with equation of state crossing the phantom divide line. We also investigate the classical stability of our model using the phase velocity of the homogeneous perturbations of the tachyon scalar field.
Cite
@article{arxiv.1201.1627,
title = {Phantom Behavior Bounce with Tachyon and Non-minimal Derivative Coupling},
author = {A. Banijamali and B. Fazlpour},
journal= {arXiv preprint arXiv:1201.1627},
year = {2015}
}
Comments
15 pages, 8 figures, Accepted for publication in JCAP. arXiv admin note: substantial text overlap with arXiv:1105.4967