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arXiv · 1010.6021

Hyperbolic Inflation

Yoonbai Kim·Seong Chan Park
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Abstract

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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Yoonbai Kim, Seong Chan Park. 2011-02-15. Hyperbolic Inflation. https://doi.org/10.1103/physrevd.83.066009

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