Primordial black holes in nonminimal derivative coupling inflation with quartic potential and reheating consideration

Understand

We investigate the generation of Primordial Black Holes (PBHs) with the aid of gravitationally increased friction mechanism originated from the NonMinimal field Derivative Coupling (NMDC) to gravity framework, with the quartic potential.

• Applying the coupling parameter as a two-parted function of inflaton field and fine-tuning of five parameter assortments we can acquire ultra slow-roll phase to slow down the inflaton field due to high friction.
• This enables us to achieve enough enhancement in the amplitude of curvature perturbations power spectra to generate PBHs with different masses.
• The reheating stage is considered to obtain criteria for PBHs generation during radiation dominated era.