Different effects of the Lorentz and Gaussian bump functions on the formation of primordial black holes and secondary gravitational waves

Wei Yang, Yu-Xuan Kang, Arshad Ali +3

Scalar perturbations in the inflation can be amplified when the base inflation potential $V_b(\ddot{I}•)$ incorporates a local bump $f(\ddot{I}•)$ such as $V(\ddot{I}•)=V_b(\ddot{I}•)(1+f(\ddot{I}•))$. This modifica…