3 papers
gr-qc2026
Quasinormal modes and their excitation beyond general relativity. II: isospectrality loss in gravitational waveforms
Hector O. Silva, Giovanni Tambalo, Kostas Glampedakis +1
We continue our series of papers where we study the quasinormal modes, and their excitation, of black holes in the simplest beyond general relativity model in which first-principle…
gr-qc2026
Quasinormal modes of Kerr-Newman black holes: revisiting the Dudley-Finley approximation
Sagnik Saha, Hector O. Silva
We present a comprehensive study of the Kerr-Newman quasinormal mode spectrum in the Dudley-Finley approximation, where the linear gravitoelectromagnetic perturbations are decouple…
gr-qc2025
Kerr-Newman quasinormal modes and Seiberg-Witten theory
Hector O. Silva, Jung-Wook Kim, M. V. S. Saketh
It was recently suggested the quasinormal-mode spectrum of black holes is related to a class of four-dimensional super Yang-Mills theories described by Seiberg-Witt…