Quasinormal modes of a d-dimensional regular black hole featuring an integrable singularity
Abstract
In this paper, we exhaustively investigate the quasinormal modes (QNMs) of a probe scalar field over a d-dimensional regular black hole (BH) characterized by the parameter A. The quasinormal frequencies (QNFs) exhibit different behaviors with respect to the parameter A for d = 4 and d > 4. Firstly, the trends of QNFs with respect to A exhibit completely opposite patterns for the case of d = 4 and d > 4. Secondly, in the 4-dimensional regular BH, a non-monotonic behavior with respect to A is observed in the imaginary part of the fundamental modes with vanishing angular quantum number. In contrast, this non-monotonic behavior only appears in the overtones when d > 4. Thirdly, an overtone outburst accompanied by an oscillatory patter is observed only in the case of d > 4, but not in d = 4.
Cite
@article{arxiv.2412.20457,
title = {Quasinormal modes of a d-dimensional regular black hole featuring an integrable singularity},
author = {Zhongzhinan Dong and Dan Zhang and Guoyang Fu and Jian-Pin Wu},
journal= {arXiv preprint arXiv:2412.20457},
year = {2025}
}