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arXiv · 1002.4044

Inflatonless Inflation

Chiu Man Ho·Thomas W. Kephart
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Abstract

We consider a 4+N dimensional Einstein gravity coupled to a non-linear sigma model. This theory admits a solution in which the N extra dimensions contract exponentially while the ordinary space expand exponentially. Physically, the non-linear sigma fields induce the dynamical compactification of the extra dimensions, which in turn drives inflation. No inflatons are required.

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Chiu Man Ho, Thomas W. Kephart. 2010-02-22. Inflatonless Inflation. https://doi.org/10.1142/s0217751x12501515

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