A Quintom scenario with mixed kinetic terms
High Energy Physics - Theory
2014-11-20 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We examine an extension of the quintom scenario of dark energy, in which a canonical scalar field and a phantom field are coupled through a kinetic interaction. We perform a phase space analysis and show that the kinetic coupling gives rise to novel cosmological behaviour. In particular, we obtain both quintessence-like and phantom-like late-time solutions, as well as solutions that cross the phantom divide during the evolution of the universe.
Keywords
Cite
@article{arxiv.0912.5304,
title = {A Quintom scenario with mixed kinetic terms},
author = {Emmanuel N. Saridakis and Joel M. Weller},
journal= {arXiv preprint arXiv:0912.5304},
year = {2014}
}
Comments
11 pages, 4 figures, version published in Phys. Rev. D