15 citations · 26 across the 6 of their papers we have counts for
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gr-qc2025★ 4 cited
Exceptional Points and Resonance in Black Hole Ringdown
Rodrigo Panosso Macedo, Takuya Katagiri, Kei-ichiro Kubota +1
We propose an exceptional-point (EP) framework for black-hole ringdown beyond the standard quasinormal-mode (QNM) paradigm. It provides a first-principles characterization of the r…
gr-qc2025★ 7 cited
Resonance in black hole ringdown: Benchmarking quasinormal mode excitation and extraction
Kei-ichiro Kubota, Hayato Motohashi
We investigate how resonant excitation near exceptional points manifests in Kerr black hole ringdown waveforms and examine its extraction. Using waveforms generated by localized in…