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arXiv · 1604.00444

Cosmological Attractors and Asymptotic Freedom of the Inflaton Field

Renata Kallosh·Andrei Linde
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Abstract

We show that the inflaton coupling to all other fields is exponentially suppressed during inflation in the cosmological $α$-attractor models. In the context of supergravity, this feature is a consequence of the underlying hyperbolic geometry of the moduli space which has a flat direction corresponding to the inflaton field. A combination of these factors protects the asymptotic flatness of the inflaton potential.

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Renata Kallosh, Andrei Linde. 2016-06-24. Cosmological Attractors and Asymptotic Freedom of the Inflaton Field. https://doi.org/10.1088/1475-7516%2F2016%2F06%2F047

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