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Quasinormal modes of regular black holes with sub-Planckian curvature and Minkowskian core

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arxiv 2411.01764 v2 pith:3D5ZY7EP submitted 2024-11-04 gr-qc

Quasinormal modes of regular black holes with sub-Planckian curvature and Minkowskian core

Chen Tang , Yi Ling , Qing-Quan Jiang , Guo-Ping Li This is my paper
classification gr-qc
keywords blackcorefieldqnmsregularholeholesminkowskian
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We investigate the perturbation of the scalar field as well as the electromagnetic field over a sort of regular black holes which are characterized by the sub-Planckian curvature and the Minkowskian core. Specifically, we compute the quasinormal modes(QNMs) by employing the pseudo-spectral method. The outburst of overtones is manifestly observed in the QNMs of these regular black holes, which can be attributed to the deviation of the Schwarzschild black hole by quantum effects of gravity. Furthermore, the QNMs under the perturbation of electromagnetic field exhibit smaller real and imaginary parts than those under scalar field perturbation. By comparing the QNMs of the regular black hole featured by Minkowskian core with those of Bardeen black hole featured by de Sitter core, we find they may be an effective tool to distinguish these BHs.

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Cited by 2 Pith papers

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  1. Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties

    gr-qc 2025-12 conditional novelty 4.0

    For the regular hairy black hole metric (29), larger β shrinks the ISCO and photon sphere, reduces QNM damping, and adds a canonical-ensemble stable phase.

  2. Quasinormal modes and grey-body factors of axial gravitational perturbations of regular black holes in asymptotically safe gravity

    gr-qc 2025-06 unverdicted novelty 4.0

    Axial quasinormal modes of regular black holes in asymptotically safe gravity are weakly affected by the deviation parameter for the fundamental mode but show notable deviations for higher overtones, with strong agree...