TY - JOUR
T1 - Quintom phase-space
T2 - Beyond the exponential potential
AU - Leon, Genly
AU - Leyva, Yoelsy
AU - Socorro, J.
PY - 2014/5/1
Y1 - 2014/5/1
N2 - We investigate the phase-space structure of the quintom dark energy paradigm in the framework of spatially flat and homogeneous universe. We have also included radiation and dark matter, both matter components are described as perfect fluids. Considering arbitrary decoupled potentials, we find certain general conditions under which the phantom-dominated solution is a late time attractor, generalizing previous results found for the case of an exponential potential. Center Manifold Theory is employed to obtain sufficient conditions for the instability of de Sitter solution either with phantom or quintessence potential dominance.
AB - We investigate the phase-space structure of the quintom dark energy paradigm in the framework of spatially flat and homogeneous universe. We have also included radiation and dark matter, both matter components are described as perfect fluids. Considering arbitrary decoupled potentials, we find certain general conditions under which the phantom-dominated solution is a late time attractor, generalizing previous results found for the case of an exponential potential. Center Manifold Theory is employed to obtain sufficient conditions for the instability of de Sitter solution either with phantom or quintessence potential dominance.
UR - https://www.scopus.com/pages/publications/84898417700
U2 - 10.1016/j.physletb.2014.03.053
DO - 10.1016/j.physletb.2014.03.053
M3 - Article
AN - SCOPUS:84898417700
SN - 0370-2693
VL - 732
SP - 285
EP - 297
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -