113 citations · 253 across the 5 of their papers we have counts for
7 papers
Intrinsic non-Gaussianity of ultra slow-roll inflation
Guillermo Ballesteros, Jesús Gambín Egea, Thomas Konstandin +3
We study the non-Gaussian tail of the curvature fluctuation, , in an inflationary scenario with a transient ultra slow-roll phase that generates a localized large enhancement of…
Non-Gaussian tails without stochastic inflation
Guillermo Ballesteros, Thomas Konstandin, Alejandro Pérez Rodríguez +2
We show, both analytically and numerically, that non-Gaussian tails in the probability density function of curvature perturbations arise in ultra-slow-roll inflation from the …
Induced gravitational waves and baryon asymmetry fluctuations from primordial black hole formation
Chiara Altavista, Julián Rey
We consider black hole formation due to the gravitational collapse produced by large density fluctuations during an epoch of reheating with a stiff equation of state and calculate…
Primordial black holes and gravitational waves from dissipation during inflation
Guillermo Ballesteros, Marcos A. G. García, Alejandro Pérez Rodríguez +2
We study the generation of a localized peak in the primordial spectrum of curvature perturbations from a transient dissipative phase during inflation, leading to a large population…
Stochastic inflationary dynamics beyond slow-roll and consequences for primordial black hole formation
Guillermo Ballesteros, Julián Rey, Marco Taoso +1
We consider the impact of quantum diffusion on inflationary dynamics during an ultra-slow-roll phase, which can be of particular significance for the formation of primordial black…
Primordial black holes as dark matter and gravitational waves from single-field polynomial inflation
Guillermo Ballesteros, Julián Rey, Marco Taoso +1
We consider the possibility that the majority of dark matter in our Universe consists of black holes of primordial origin. We determine the conditions under which such black holes…