مشخصات پژوهش

صفحه نخست /α-Attractors and reheating in ...
عنوان α-Attractors and reheating in a nonminimal inflationary model
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها Nonminimal derivative inflation; α-attractor; E-model; T-model
چکیده 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.
پژوهشگران فرهاد دارابی (نفر سوم)، کوروش نوذری (نفر دوم)، راحله شجاعی (نفر اول)