69 citations · 489 across the 44 of their papers we have counts for
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On the universality of instability in the fundamental quasinormal modes of black holes
Wei-Liang Qian, Guan-Ru Li, Ramin G. Daghigh +2
We elaborate on a criterion for the emergence of instability in the fundamental mode recently observed by Cheung {\it et al.}, as a universal phenomenon in the context of black hol…
On bifurcation and spectral instability of asymptotic quasinormal modes in the modified Pöschl-Teller effective potential
Guan-Ru Li, Wei-Liang Qian, Ramin G. Daghigh
The Pöchl-Teller effective potential mimics an asymptotically de Sitter black hole bounded by an event horizon and a cosmological one. Owing to the benefit of being analytically so…
Calculating quasinormal modes of extremal and non-extremal Reissner-Nordström black holes with the continued fraction method
Ramin G. Daghigh, Michael D. Green, Jodin C. Morey
We use the numerical continued fraction method to investigate quasinormal mode spectra of extremal and non-extremal Reissner-Nordström black holes in the low and intermediate dampi…