Abstract
We describe an induced inflation, which refers to a class of inflationary models with a generalized non-minimal coupling ξg(ϕ)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 ξ. At large ξ, 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(ϕ). We find that at small ξ, 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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Kallosh, R., Linde, A. & Roest, D. The double attractor behavior of induced inflation. J. High Energ. Phys. 2014, 62 (2014). https://doi.org/10.1007/JHEP09(2014)062
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DOI: https://doi.org/10.1007/JHEP09(2014)062