Cosmology in the Randall-Sundrum brane world scenario

Stoica, Horace; Tye, S.H.Henry; Wasserman, Ira

doi:10.1016/S0370-2693(00)00538-4

Cosmology in the Randall-Sundrum brane world scenario

Apr, 2000

11 pages

Published in:

Phys.Lett.B 482 (2000) 205-212

e-Print:

hep-th/0004126 [hep-th]

DOI:

10.1016/S0370-2693(00)00538-4

Report number:

CLNS-00-1672

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Abstract:

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.

Randall-Sundrum model
cosmological model
dimension: 5
dimension: 4
membrane model
space-time: anti-de Sitter
space-time: Schwarzschild
inflation

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