1–5 Jul 2024
Bologna, Italy
Europe/Rome timezone

Vortex effects in merging Q-balls: a theoretical laboratory for merging black holes?

3 Jul 2024, 12:45
5m
Aula Giorgio Prodi - San Giovanni in Monte, University of Bologna (Bologna, Italy)

Aula Giorgio Prodi - San Giovanni in Monte, University of Bologna

Bologna, Italy

Piazza S. Giovanni in Monte, 2, 40124 Bologna BO

Speaker

Michael Zantedeschi (Tsung-Dao Lee Institute)

Description

We will discuss vorticity as an intrinsic property of highly-spinning black holes. The connection between vorticity and limiting spin represents a universal feature shared by objects of maximal microstate entropy, so-called saturons. Using Q-ball-like saturons as a laboratory for black holes, we study the collision of two such objects and find that vorticity can have a large impact on the emitted radiation as well as on the charge and angular momentum of the final configuration. As black holes belong to the class of saturons, we expect that the formation of vortices can cause similar effects in black hole mergers, leading to macroscopic deviations in gravitational radiation. This could leave unique signatures detectable with upcoming gravitational-wave searches, which can thereby serve as a portal to macroscopic quantum effects in black holes.

Related Papers/Preprints https://arxiv.org/abs/2310.02288

Primary author

Michael Zantedeschi (Tsung-Dao Lee Institute)

Presentation materials