Inflation with bulk fields in the Randall-Sundrum warped compactification?

Details Inflation with bulk fields in the Randall-Sundrum warped compactification? Inflation with bulk fields in the Randall-Sundrum warped compactification?

2001-03-28

arxiv.org/abs/hep-ph/0103297v1

Pramana 55 (2000) 317-320

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, contribution to Neutrino and Astroparticle Physics Working group report, Proceedings of WHEPP-6, Chennai, India, Jan.

Scientific paper

Randall and Sundrum have proposed that we live on a brane embedded in 5-dimensional anti-deSitter space, as a solution to the hierarchy problem. We examine the possibility of using a scalar field in the 5-D bulk as the inflaton, and show that it gives results which are indistinguishable from an inflaton which is restricted to our brane. This makes it difficult to get large enough density perturbations in simple one-field inflationary models, since mass scales on our brane are supposed to be limited by a cutoff of order 1 TeV.

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