Instability of Regular BH Solutions in Nonlinear Electrodynamics

Speaker

Antonio De Felice

Date

Mar 10, 2025

Time

11:00

12:00

Place

Room 7S1

Abstract

I will discuss the instabilities of spherically symmetric static regular black holes found in the context of nonlinear electrodynamics. These solutions were proposed to resolve classically the singularity present in GR and standard electromagnetism. I will show that all the solutions for these theories suffer from local instabilities with modes with large angular momentum and a short time scale of instability.

Biography

Antonio De Felice is a professor at the Yukawa Institute for Theoretical Physics (YITP) at Kyoto University. He is an expert in particle cosmology and has done important work on theories of dark energy, scalar-tensor theories and modified gravity models.