Cosmological Solutions of Supergravity in Singular Spaces

Details Cosmological Solutions of Supergravity in Singular Spaces Cosmological Solutions of Supergravity in Singular Spaces

2000-11-08

arxiv.org/abs/hep-th/0011045v1

Phys.Lett. B497 (2001) 289-295

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, Latex

Scientific paper

10.1016/S0370-2693(00)01342-3

We study brane-world solutions of five-dimensional supergravity in singular spaces. We exhibit a self-tuned four-dimensional cosmological constant when five-dimensional supergravity is broken by an arbitrary tension on the brane-world. The brane-world metric is of the FRW type corresponding to a cosmological constant $\Omega_{\Lambda}={5/7}$ and an equation of state $\omega=-{5/7}$ which are consistent with experiment.

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