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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Quintom cosmologies admitting either tracking or phantom attractors
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Volume 638, No. 4, Year 2006
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Description
In this Letter we investigate the evolution of a class of cosmologies fueled by quintom dark energy and dark matter. Quintom dark energy is a hybrid of quintessence and phantom which involves the participation of two real scalar fields playing the roles of those two types of dark energy. In that framework we examine, from a dynamical systems perspective, the possibility that those fields are coupled among them by considering an exponential potential with an interesting functional dependence similar but not identical to others studied before. The model we consider represents a counterexample to the typical behavior of quintom models with exponential potentials because it admits either tracking attractors (w = 0), or phantom attractors (w < - 1). © 2006 Elsevier B.V. All rights reserved.
Authors & Co-Authors
León, Genly
Cuba, Santa Clara
Universidad Central Marta Abreu de Las Villas
Statistics
Citations: 111
Authors: 1
Affiliations: 2
Identifiers
Doi:
10.1016/j.physletb.2006.05.075
ISSN:
03702693