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Multi-phase induced inflation in theories with non-minimal coupling to gravity

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Published 5 January 2017 © 2017 IOP Publishing Ltd and Sissa Medialab srl
, , Citation Michał Artymowski et al JCAP01(2017)011 DOI 10.1088/1475-7516/2017/01/011

1475-7516/2017/01/011

Abstract

In this paper we investigate the induced inflation with two flat regions: one Starobinsky-like plateau in strong coupling regime and one shorter plateau around the saddle point of the Einstein frame potential. This multi-phase inflationary scenario can be used to solve problems of classical cosmology as well as the problem of initial conditions for inflation. The inflation at the saddle-point plateau is consistent with the data and can have arbitrarily low scale. The results can be useful in the context of the Higgs-Axion relaxation and in a certain limit they are equivalent to the α-attractors.

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10.1088/1475-7516/2017/01/011