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arXiv · 2408.11162

Correspondence between grey-body factors and quasinormal frequencies for rotating black holes

R. A. Konoplya·A. Zhidenko
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Abstract

Although the proper oscillation frequencies of black holes (quasinormal modes) and the grey-body factors, which determine the scattering properties of black holes, represent two distinct spectral problems with different boundary conditions, a recent study has revealed an intrinsic connection between these quantities. We have shown that the correspondence between grey-body factors and quasinormal modes, previously established for spherically symmetric and asymptotically flat black holes, also extends to general parametrized axially symmetric black holes. This correspondence is limited to non-superradiant waves.

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R. A. Konoplya, A. Zhidenko. 2024-08-20. Correspondence between grey-body factors and quasinormal frequencies for rotating black holes. https://doi.org/10.1016/j.physletb.2025.139288

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