We review conceptual aspects of inflationary scenarios able to produce primordial black
holes by amplifying the size of curvature fluctuations to the level required to trigger black …

In this paper, we review in detail different mechanisms of generation of large primordial
fluctuations and their implications for the production of primordial black holes (PBHs) and …

We revisit the one-loop correction in curvature perturbation power spectrum in models of
single field inflation which undergo a phase of ultra slow-roll (USR) inflation. We include the …

We derive analytic bounds on the shape of the primordial power spectrum in the context of
single-field inflation. In particular, the steepest possible growth has a spectral index of ns …

We examine the possibility of Primordial Black Holes (PBHs) formation in single field models
of inflation. Using the adiabatic or wave function renormalization scheme in the short range …

The most widely studied formation mechanism of a primordial black hole (PBH) is collapse
of large-amplitude perturbation on small scales generated in single-field inflation. In this …

For primordial perturbations, deviations from Gaussian statistics on the tail of the probability
distribution can be associated with non-perturbative effects of inflation. In this paper, we …

We consider the effect of quantum diffusion on the dynamics of the inflaton during a period of
ultra-slow-roll inflation. We extend the stochastic-δ Script N formalism to the ultra-slow-roll …

We consider quantum diffusion in ultraslow-roll (USR) inflation. Using the Δ N formalism, we
present the first stochastic calculation of the probability distribution P (R) of the curvature …

We study the impact of stochastic noise on the generation of primordial black hole (PBH)
seeds in ultra-slow-roll (USR) inflation with numerical simulations. We consider the non …