Standard Cosmology from Sigma-Model

Details Standard Cosmology from Sigma-Model Standard Cosmology from Sigma-Model

2000-03-31

arxiv.org/abs/hep-th/0003299v4

Phys.Lett. B488 (2000) 11-16

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 1 figure, LaTeX; references added, version to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(00)00850-9

We investigate (4+1)- and (5+0)-dimensional gravity coupled to a non-compact scalar field sigma-model and a perfect fluid within the context of the Randall-Sundrum scenario. We find cosmological solutions with a rolling fifth radius and a family of warp factors. Included in this family are both the original Randall-Sundrum solution and the self-tuning solution of Kachru, Schulz and Silverstein. Our solutions exhibit conventional cosmology.

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