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

Primordial black hole superradiance

21 Jun 2023, 09:00
20m
Naples, Italy

Naples, Italy

Talk Session 9

Speaker

João Rosa (University of Coimbra)

Description

I will describe superradiant particle production in the context of primordial black holes, discussing its cosmological and astrophysical relevance. In particular, I will focus on the superradiant production of axion-like particles and other exotic bosonic particles that they may account for (a fraction of) dark matter. I will discuss particle production by primordial black holes in the asteroid-mass range, as well as by (much) lighter black holes. In the latter case, there is a significant interplay between Hawking evaporation and superradiance that may lead to interesting dynamical and observational consequences. Finally, I will discuss potential observational signatures of primordial black hole superradiance.

Primary author

João Rosa (University of Coimbra)

Presentation materials