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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 Non-Minimal Derivative (NMD) inflation where a canonical scalar field
and its derivatives are non-minimally 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, 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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