May 27 – 31, 2024
UB Physics Faculty
Europe/Madrid timezone

PBH formation during preheating [Chair: Notari]

May 27, 2024, 4:30 PM
Room N06 (UB Physics Faculty)

Room N06

UB Physics Faculty

Martí i Franquès, 1, 11 08028 Barcelona


Quim Iguaz Juan (UMass Amherst)


Primordial Black Holes (PBHs) can form in the very early universe and can be associated with numerous cosmological and astrophysical signatures. We examined the production of large curvature perturbations that may lead to PBH formation in the early universe, in particular during the preheating phase that follows after inflation. At this stage, non-perturbative phenomena lead to the exponential amplification of field perturbations that can ultimately collapse into a black hole or form semi-stable configurations such as oscillons. The details of this phenomenon are directly linked to the features of the inflaton potential and type of inflation. We aim at easing the apparent confusion in the community regarding this issue and provide a consistent view of the conditions that actually lead to PBH formation.

Are you interested in publishing a 2-4 pages proceeding at the MDPI Journal? Yes

Primary author

Quim Iguaz Juan (UMass Amherst)

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