Extranatural Inflation

Details Extranatural Inflation Extranatural Inflation

2003-01-27

arxiv.org/abs/hep-th/0301218v2

Phys.Rev.Lett.90:221302,2003

Physics

High Energy Physics

High Energy Physics - Theory

4 pages. Minor corrections and references added. Accepted for PRL

Scientific paper

10.1103/PhysRevLett.90.221302

We present a new model of inflation in which the inflaton is the extra component of a gauge field in a 5d theory compactified on a circle. The chief merit of this model is that the potential comes only from non-local effects so that its flatness is not spoiled by higher dimensional operators or quantum gravity corrections. The model predicts a red spectrum (n ~ 0.96) and a significant production of gravitational waves (r ~ 0.11). We also comment on the relevance of this idea to quintessence.

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