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Abstract
We demonstrate that there exists an inflationary solution on the positive tension brane in the Randall-Sundrum scenario. Inflation is driven by a slow-rolling scalar field on the brane and is achieved within the perturbative limit of the radion field. We find that inflation on the positive tension brane results in a slight increase in the separation between the two branes. However, we show that the slow-roll inflation is not possible on the negative tension brane.
Highlights
An alternative mechanism of solving the hierarchy problem has been proposed w1x
The novel proposal exploits the fact that the fundamental Planck scale M is a TeV scale but in 4 q d dimensions, where d is the number of extra dimensions which are to be compactified
The low energy effective four dimensional action of gravity in the Randall-Sundrum scenario mimics that of a scalar tensor theory with a varying BransDicke parameter before the brane separation is stabilized
Summary
Anupam Mazumdar a, Jing Wang b a Astrophysics Group, Blackett Laboratory, Imperial College London, London SW7 2BZ, UK b Theory DiÕision, Fermi National Accelerator Laboratory, P.O.Box 500, BataÕia, IL 60510, USA. Received 20 April 2000; received in revised form 20 July 2000; accepted 24 July 2000
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