### Constructing dark energy models with late time de Sitter attractorConstructing dark energy models with late time de Sitter attractor

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 Author Hao, Jian-gang ♦ Li, Xin-zhou Source arXiv.org Content type Text File Format PDF Date of Submission 2003-06-04 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Astronomy & allied sciences ♦ Physics Subject Keyword High Energy Physics - Theory ♦ Astrophysics ♦ General Relativity and Quantum Cosmology ♦ physics:astro-ph ♦ physics:gr-qc ♦ physics:hep-th Abstract In this paper, we describe a way to construct a class of dark energy models that admit late time de Sitter attractor solution. In the canonical scalar and Born-Infeld scalar dark energy models, we show mathematically that a simple sufficient condition for the existence of a late time de Sitter like attractor solution is that the potentials of the scalar field have non-vanishing minimum while this condition becomes that the potentials have non-vanishing maximum for the phantom models. These attractor solutions correspond to an equation of state $w=-1$ and a cosmic density parameter $\Omega_{\phi}=1$, which are important features for a dark energy model that can meet the current observations. Description Reference: Phys.Rev. D68 (2003) 083514 Educational Use Research Learning Resource Type Article Page Count 8