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arXiv · hep-th/0301218

Extranatural Inflation

Nima Arkani-Hamed·Hsin-Chia Cheng·Paolo Creminelli·Lisa Randall
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Abstract

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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Nima Arkani-Hamed, Hsin-Chia Cheng, Paolo Creminelli, Lisa Randall. 2003-05-20. Extranatural Inflation. https://doi.org/10.1103/physrevlett.90.221302

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