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Title
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α-Attractors and reheating in a nonminimal inflationary model
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Type
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JournalPaper
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Keywords
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Nonminimal derivative inflation; α-attractor; E-model; T-model
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Abstract
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We study α-attractor models with both E-model and T-model potential in an extended Nonminimal Derivative (NMD) inflation where a canonical scalar field and its derivatives are nonminimally coupled to gravity. We calculate the evolution of perturbations during this regime. Then by adopting inflation potentials of the model we show that in the large N and small α limit, the value of the scalar spectral index ns and tensor-to-scalar ratio r are universal. Next, we study reheating after inflation in this formalism. We obtain some constraints on the model’s parameter space by adopting the results with Planck 2018.
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Researchers
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Farhad Darabi (Third Researcher), Kourosh Nozari (Second Researcher), Raheleh Shojaee (First Researcher)
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