635 citations · 5.4k across the 66 of their papers we have counts for
66 papers
Formation of trapped vacuum bubbles during inflation, and consequences for PBH scenarios
Albert Escrivà, Vicente Atal, Jaume Garriga
A class of inflationary scenarios for primordial black hole (PBH) formation include a small barrier in the slope of the potential. There, the inflaton slows down, generating an enh…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
PBH in single field inflation: the effect of shape dispersion and non-Gaussianities
Vicente Atal, Judith Cid, Albert Escrivà +1
Primordial black holes (PBHs) may result from high peaks in a random field of cosmological perturbations. In single field inflationary models, such perturbations can be seeded as t…
Enhanced cosmological perturbations and the merger rate of PBH binaries
Jaume Garriga, Nikolaos Triantafyllou
The rate of merger events observed by LIGO/Virgo can be used in order to probe the fraction of dark mater in the form of Primordial Black Holes. Here, we consider the merger ra…
Primordial black hole formation with non-Gaussian curvature perturbations
Vicente Atal, Jaume Garriga, Airam Marcos-Caballero
In the context of transient constant-roll inflation near a local maximum, we derive the non-perturbative field redefinition that relates a Gaussian random field with the true non-G…
Vacuum birefringence and the Schwinger effect in (3+1) de Sitter
Mariona Banyeres, Guillem Domènech, Jaume Garriga
In de Sitter space, the current induced by an electric field in vacuum is known to feature certain peculiarities, such as infrared hyperconductivity for light bosons in weak electr…