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arXiv · 2402.15085

Quasinormal modes of a regular black hole with sub-Planckian curvature

Dan Zhang·Huajie Gong·Guoyang Fu·Jian-Pin Wu·Qiyuan Pan
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Abstract

This paper explores the properties of the quasinormal modes (QNMs) of a regular black hole(BH) characterized by a Minkowski core and sub-Planckian curvature. When focusing on a special case, this regular BH exhibits identical large-scale behavior with the Hayward BH and some loop quantum gravity corrected (LQG-corrected) BH. A notable characteristic of the QNMs in this regular BH is the pronounced outburst of overtones when compared to the Schwarzschild BH (SS-BH). This outburst can be attributed to the deviation from the SS-BH in the near-horizon geometry region due to the quantum gravity effect. Furthermore, we compare the QNM properties of the regular BH with those of the Hayward BH and the LQG-corrected BH. A similar phenomenon of overtone outburst is observed in the modes of the overtone. As a conclusion, the QNMs may be a powerful tool for detecting the quantum gravity effect and distinguishing different BH models.

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Dan Zhang, Huajie Gong, Guoyang Fu, Jian-Pin Wu, Qiyuan Pan. 2024-02-23. Quasinormal modes of a regular black hole with sub-Planckian curvature. https://arxiv.org/abs/2402.15085

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