Jun 19 – 21, 2023
Naples, Italy
Europe/Rome timezone

Primordial black holes from the pre-big bang

Jun 20, 2023, 3:40 PM
10m
Naples, Italy

Naples, Italy

Highlight talk Session 7

Speaker

Pietro Conzinu (University of Pisa & INFN)

Description

I will discuss the possibility of producing a significant fraction of dark matter in the form of primordial black holes (PBHs) in the context of the pre-big bang scenario. To this purpose, we consider the enhancement of curvature perturbations possibly induced by a variation of the sound-speed parameter c_s that emerges naturally due to higher-order string corrections. We describe the production both in radiation and in matter dominated era.

Primary author

Pietro Conzinu (University of Pisa & INFN)

Presentation materials