In this paper we present a new scenario where massive primordial black holes (PBHs) are
produced from the collapse of large curvature perturbations generated during a mild …

A bstract The squeezed limit of the primordial curvature bispectrum is an extremely sensitive
probe of new physics and encodes information about additional fields active during inflation …

Primordial black holes (PBHs) are black holes which may have formed very early on during
the radiation dominated era in the early universe. We present here a method by which the …

We show that a hybrid inflation model with multiple waterfall fields can result in the formation
of primordial black holes (PBHs) with an astrophysical size, by using an advanced algorithm …

Without demanding a specific form for the inflaton potential, we obtain an estimate of the
contribution to the curvature perturbation generated during the linear era of the hybrid …

We revisit the scenario of primordial black hole (PBH) formation from large curvature
perturbations generated during the waterfall phase transition in hybrid inflation models. In a …

In this paper, we show how the structure of the landscape potential of the primordial
Universe may be probed through the properties of the primordial density perturbations …

We studied the possibility whether the massive primordial black holes (PBHs) surviving
today can be produced in hybrid inflation. Though it is of great interest since such PBHs can …

A pressing problem in comparing inflationary models with observation is the accurate
calculation of correlation functions. One approach is to evolve them using ordinary …

We study the possibility that primordial black holes (PBHs) can be formed from large
curvature perturbations generated during the waterfall phase transition due to the effects of …