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Attractor Solution of Phantom Field

Jian-gang Hao·Xin-zhou Li
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Abstract

In light of recent study on the dark energy models that manifest an equation of state $w<-1$, we investigate the cosmological evolution of phantom field in a specific potential, exponential potential in this paper. The phase plane analysis show that the there is a late time attractor solution in this model, which address the similar issues as that of fine tuning problems in conventional quintessence models. The equation of state $w$ is determined by the attractor solution which is dependent on the $λ$ parameter in the potential. We also show that this model is stable for our present observable universe.

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Jian-gang Hao, Xin-zhou Li. 2003-08-22. Attractor Solution of Phantom Field. https://doi.org/10.1103/physrevd.67.107303

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