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The double attractor behavior of induced inflation · Around

2014

The double attractor behavior of induced inflation

Kallosh, Renata, Linde, Andrei, Roest, Diederik

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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 $g(\phi)$.

Built on

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D. Salopek, J. Bond and J. M. Bardeen, Designing Density Fluctuation Spectra in Inflation
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A. D. Linde, “Chaotic Inflation,” Phys. Lett. B 129
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P. A. R. Ade et al
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Similar

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R. Kallosh, A. Linde and D. Roest, “Superconformal Inflationary α \alpha -Attractors,” JHEP 1311
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G. F. Giudice and H. M. Lee, “Starobinsky-like inflation from induced gravity,” arXiv:1402.2129 [hep-ph]
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Then

R. Kallosh, A. Linde and D. Roest, “A universal attractor for inflation at strong coupling,” Phys. Rev. Lett. 112
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2014
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D. Roest, “Universality classes of inflation,” JCAP 01
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2014
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A. Kehagias, A. M. Dizgah and A. Riotto, “Comments on the Starobinsky Model of Inflation and its Descendants,” Phys. Rev. D 89
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R. Kallosh and A. Linde, “Universality Class in Conformal Inflation,” JCAP 1307
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Cited in the paper.

R. Kallosh, “More on Universal Superconformal Attractors,” arXiv:1402.3286 [hep-th]

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D. C. Edwards and A. R. Liddle, “The observational position of simple non-minimally coupled inflationary scenarios,” arXiv:1406.5768 [astro-ph.CO]

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P. A. R. Ade et al

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C. Pallis, “Induced-Gravity Inflation in no-Scale Supergravity and Beyond,” arXiv:1403.5486 [hep-ph]

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B. Mosk and J. P. van der Schaar, “Chaotic inflation limits for non-minimal models with a Starobinsky attractor,” arXiv:1407.4686 [hep-th]

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R. Kallosh, A. Linde and D. Roest, “Large Field Inflation and Double α \alpha -Attractors,” arXiv:1405.3646 [hep-th]

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