34 citations · 116 across the 9 of their papers we have counts for
5 papers · 1 filter
Exceptional lines in the Kerr-Newman black hole spectrum
João Paulo Cavalcante, Maurício Richartz
We investigate massive scalar perturbations of Kerr-Newman black holes, focusing on the quasinormal mode spectrum in the near-extremal regime. We identify a sequ…
Ergodic Hysteresis of the Kerr black hole spectrum
João Paulo Cavalcante, Maurício Richartz, Bruno Carneiro da Cunha
We uncover a cascade of exceptional points (EPs) in the quasinormal mode spectrum of massive scalar perturbations of Kerr black holes, revealing an intricate non-Hermitian structur…
Massive scalar perturbations in Kerr Black Holes: near extremal analysis
João Paulo Cavalcante, Maurício Richartz, Bruno Carneiro da Cunha
We study quasinormal modes of massive scalar perturbations in Kerr black holes using the isomonodromic method. For arbitrary scalar masses and black hole spins , we nume…
Exceptional point and hysteresis in perturbations of Kerr black holes
João Paulo Cavalcante, Maurício Richartz, Bruno Carneiro da Cunha
We employ the isomonodromic method to study linear scalar massive perturbations of Kerr black holes for generic scalar masses and generic black hole spins . We find that…
Scalar/Dirac perturbations of the Reissner-Nordström black hole and Painlevé transcendents
João Paulo Cavalcante, Bruno Carneiro da Cunha
We investigate spin- and spin- perturbations for non-extremal and extremal Reissner-Nordström backgrounds using the isomonodromic method. We calculate the fundament…