Year: 2003
Type: article
Abstract: In this paper, we describe a way to construct a class of dark energy models that admits 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 a nonvanishing minimum while this condition becomes that the potentials have a nonvanishing maximum for the phantom models. These attractor solutions correspond to an equation of state $w=\ensuremath{-}1$ and a cosmic density parameter ${\ensuremath{\Omega}}_{\ensuremath{\varphi}}=1,$ which are important features for a dark energy model that can meet the current observations.
Authors: Jian-gang Hao, Xin-zhou Li
Institution: Shanghai Normal University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2074688138