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arXiv · 1407.4471

The double attractor behavior of induced inflation

Renata Kallosh·Andrei Linde·Diederik Roest
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Abstract

We describe an induced inflation, which refers to a class of inflationary models with a generalized non-minimal coupling $\xi g(\phi) R$ and a specific scalar potential. The defining property of these models is that the scalar field takes a vev in the vacuum and thus induces an effective Planck mass. We study this model as a function of the coupling parameter $\xi$. At large $\xi$, the predictions of the theory are known to have an attractor behavior, converging to a universal result independent on the choice of the function $g(\phi)$. We find that at small $\xi$, the theory approaches a second attractor. The inflationary predictions of this class of theories continuously interpolate between those of the Starobinsky model and the predictions of the simplest chaotic inflation with a quadratic potential.

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Renata Kallosh, Andrei Linde, Diederik Roest. 2014-07-16. The double attractor behavior of induced inflation. https://doi.org/10.1007/jhep09(2014)062

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