Cosmology in the Randall-Sundrum Brane World Scenario

Details Cosmology in the Randall-Sundrum Brane World Scenario Cosmology in the Randall-Sundrum Brane World Scenario

2000-04-17

arxiv.org/abs/hep-th/0004126v1

Phys.Lett.B482:205-212,2000

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, revtex

Scientific paper

10.1016/S0370-2693(00)00538-4

The cosmology of the Randall-Sundrum scenario for a positive tension brane in a 5-D Universe with localized gravity has been studied extensively recently. Here we extend it to more general situations. We consider the time-dependent situation where the two sides of the brane are different AdS/Schwarzschild spaces. We show that the expansion rate in these models during inflation could be larger than in brane worlds with compactified extra dimensions of fixed size. The enhanced expansion rate could lead to the production of density perturbations of substantially larger amplitude.

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