Crossing the Phantom divide line in the Chaplygin gas model
General Relativity and Quantum Cosmology
2010-06-17 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The role of the interaction in reaching and crossing the phantom divide line in the Chaplygin gas model is discussed. We obtain some necessary properties of the interaction that allow the model to arrive at or cross the phantom divide line. We show that these properties put some conditions on the ratio of dark matter to dark energy density in the present epoch.
Keywords
Cite
@article{arxiv.0909.1002,
title = {Crossing the Phantom divide line in the Chaplygin gas model},
author = {H. Mohseni Sadjadi},
journal= {arXiv preprint arXiv:0909.1002},
year = {2010}
}
Comments
12 pages, references updated, explanations added. To be published in Phys. Lett. B