1–4 Sept 2025
Corfu
Europe/Athens timezone

U(1) gauged boson stars and hairy Reissner-Nordström black holes

3 Sept 2025, 18:00
20m
Amphitheater 2 ( Department of History )

Amphitheater 2

Department of History

https://maps.app.goo.gl/zURdtoFthKoedoNw9

Speaker

Prof. Yakov Shnir

Description

We construct black holes in U(1) gauged scalar theories, minimally coupled to Einstein gravity in asymptotically flat space. Particular examples include non-linear O(3) sigma model, Einstein-Maxwell-Friedberg-Lee-Sirlin type model and in the Einstein-Maxwell-Skyrme theory. We analyze the properties of the hairy black holes and determine their domain of existence. Our discussion focuses mostly on the case of a long-ranged massless real scalar field. Our results indicate that, depending on the coupling constants, the resonant hairy dyonic black holes may bifurcate from Reissner-Nordström black holes at maximal chemical potential, while the limiting solutions at minimal chemical potential may be related to the Penney solution.

Primary author

Presentation materials