Regular Charged Black Holes, Energy Conditions, and Quasinormal Modes
Leonardo BalartDepartamento de Ciencias Físicas Universidad de La Frontera Casilla 54‐D Temuco 4811186 ChileGrigoris PanotopoulosDepartamento de Ciencias Físicas Universidad de La Frontera Casilla 54‐D Temuco 4811186 ChileÁngel RincónDepartamento de Física Aplicada Universidad de Alicante Campus de San Vicente del Raspeig Alicante E‐03690 Spain
2023en
ABI
Annotatsiya
Abstract 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.
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