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Stable accelerating universe with no hair

Pedro F. Gonzalez-Diaz
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Abstract

After reviewing the main characteristics of the spacetime of accelerating universes driven by a quintessence scalar field with constant equation of state $ω$, we investigate in this paper the classical stability of such spaces to cosmological perturbations, particularizing in the case of a closed geometry and equation of state $ω=-2/3$. We conclude that this space is classically stable and conjecture that accelerating universes driven by quintessential fields have "no-hair".

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Pedro F. Gonzalez-Diaz. 2002-03-22. Stable accelerating universe with no hair. https://doi.org/10.1103/physrevd.65.104035

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