Quintom cosmologies with arbitrary potentials

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

In this paper we investigate quintom cosmologies with arbitrary potentials from the dynamical systems perspective. The dynamical systems analysis is complete in the sense that it includes the asymptotic regime where both scalar fields diverge, which proves to be particularly relevant in connection with the existence of tracking phases. The results of the present study indicate that the existence of phantom attractors is not generic: for quintom models there may exist either de Sitter attractors associated with the saddle points of the potential, or tracking attractors in the asymptotic regime where the scalar fields diverge.
revtex4, 9 pages, 3 eps figures, Article in press at PLB

Keywords

Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, High Energy Physics - Theory

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/187729

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0701353
 http://arxiv.org/abs/astro-ph/0701353
 Phys.Lett.B649:103-110,2007
 doi:10.1016/j.physletb.2007.03.060

Collections

arXiv