35 citations · 129 across the 11 of their papers we have counts for
6 papers · 1 filter
Are single-field models of inflation and PBHs production ruled out by ACT observations?
Daniel Frolovsky, Sergei V. Ketov
The data release from the Atacama Cosmology Telescope (ACT) imposes stronger constraints on primordial black holes (PBHs) formation in single-field inflation models versus the Plan…
Reconstructing Primordial Black Hole Power Spectra from Gravitational Waves
Daniel Frolovsky, Florian Kuhnel, Ioanna Stamou
A novel methodology for analysing the relation between the energy density in gravitational waves and primordial power spectra is developed. Focusing on scalar-induced gravitational…
Production of primordial black holes in improved E-models of inflation
Daniel Frolovsky, Sergei V. Ketov
The E-type -attractor models of single-field inflation were generalized further in order to accommodate production of primordial black holes (PBH) via adding a near-inflection p…
Fitting power spectrum of scalar perturbations for primordial black hole production during inflation
Daniel Frolovsky, Sergei V. Ketov
We propose a simple analytic fit for the power spectrum of scalar (curvature) perturbations during inflation, in order to describe slow roll of inflaton and formation of primordial…
E-models of inflation and primordial black holes
Daniel Frolovsky, Sergei V. Ketov, Sultan Saburov
We propose and study the new (generalized) E-type -attractor models of inflation, in order to include formation of primordial black holes (PBHs). The inflaton potential has a ne…
Formation of primordial black holes after Starobinsky inflation
Daniel Frolovsky, Sergei V. Ketov, Sultan Saburov
We adapted the Appleby-Battye-Starobinsky model of gravity towards describing double cosmological inflation and formation of primordial black holes with masses up to $10^{19…