Hyperbolic Inflation

Details Hyperbolic Inflation Hyperbolic Inflation

2010-10-28

arxiv.org/abs/1010.6021v2

Phys.Rev.D83:066009,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages

Scientific paper

10.1103/PhysRevD.83.066009

We propose a natural scenario for the cosmological inflation with the non-minimal coupling term invoking compact hyperbolic extra dimensions. Thanks to the unique mathematical properties of compact hyperbolic space, the large volume of extra dimensions, which provides a natural understanding of the proper size of couplings, does not necessarily accompany with the low Kaluza-Klein scale so that the model allows a single field inflation with a scale around $10^{13}$ GeV. The model fulfills all the observed data and predicts a sizable gravitational perturbation, r~0.003.

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