Regular Charged Black Holes, Energy Conditions, and Quasinormal Modes

Leonardo Balart, Grigoris Panotopoulos, Ángel Rincón

Research output: Contribution to journalArticlepeer-review


Energy conditions and quasinormal modes (QNMs) for scalar perturbations of regular charged black holes within the framework of General Relativity coupled to non-linear electrodynamics (NLE) are discussed. The frequencies are computed numerically adopting the WKB method, while in the eikonal limit an analytic expression for the spectra is obtained. The impact of the electric charge, the angular degree, and the overtone number on the spectra is investigated in detail. All frequencies are characterized by a negative imaginary part, and that each type of energy conditions imply a different quasinormal spectrum are found.

Original languageEnglish
JournalFortschritte der Physik
StateAccepted/In press - 2023
Externally publishedYes


  • energy conditions
  • non-linear electrodynamics
  • quasi-normal modes
  • static regular black hole


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