English

Stable accelerating universe with no hair

High Energy Physics - Theory 2009-11-07 v1

Abstract

After reviewing the main characteristics of the spacetime of accelerating universes driven by a quintessence scalar field with constant equation of state ω\omega, 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\omega=-2/3. We conclude that this space is classically stable and conjecture that accelerating universes driven by quintessential fields have "no-hair".

Keywords

Cite

@article{arxiv.hep-th/0203210,
  title  = {Stable accelerating universe with no hair},
  author = {Pedro F. Gonzalez-Diaz},
  journal= {arXiv preprint arXiv:hep-th/0203210},
  year   = {2009}
}

Comments

9 pages, RevTex, to appear in Phys. Rev. D

R2 v1 2026-07-22T15:09:48.231Z