scholarly journals Pseudospectrum of Reissner-Nordström black holes: Quasinormal mode instability and universality

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
Kyriakos Destounis ◽  
Rodrigo Panosso Macedo ◽  
Emanuele Berti ◽  
Vitor Cardoso ◽  
José Luis Jaramillo
Keyword(s):  
Black Holes ◽  
Quasinormal Mode ◽  
Mode Instability

scholarly journals Quasinormal modes and van der Waals-like phase transition of charged AdS black holes in Lorentz symmetry breaking massive gravity

2019 ◽  
Vol 28 (09) ◽  
pp. 1950113 ◽  
Author(s):  
Bin Liang ◽  
Shao-Wen Wei ◽  
Yu-Xiao Liu
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Symmetry Breaking ◽  
Quasinormal Modes ◽  
Massive Gravity ◽  
Quasinormal Mode ◽  
Large Black Hole ◽  
Sign Change ◽  
Lorentz Symmetry Breaking

Using the quasinormal modes of a massless scalar perturbation, we investigate the small/large black hole phase transition in the Lorentz symmetry breaking massive gravity. We mainly focus on two issues: (i) the sign change of slope of the quasinormal mode frequencies in the complex-[Formula: see text] diagram; (ii) the behaviors of the imaginary part of the quasinormal mode frequencies along the isobaric or isothermal processes. For the first issue, our result shows that, at low fixed temperature or pressure, the phase transition can be probed by the sign change of slope. While increasing the temperature or pressure to certain values near the critical point, there will appear the deflection point, which indicates that such method may not be appropriate to test the phase transition. In particular, the behavior of the quasinormal mode frequencies for the small and large black holes tend to be the same at the critical point. For the second issue, it is shown that the nonmonotonic behavior is observed only when the small/large black hole phase transition occurs. Therefore, this property can provide us with an additional method to probe the phase transition through the quasinormal modes.

scholarly journals Quasinormal mode characterization of evaporating mini black holes

2007 ◽  
Vol 2007 (10) ◽  
pp. 086-086 ◽  
Author(s):  
Elcio Abdalla ◽  
Cecilia B.M.H Chirenti ◽  
Alberto Saa
Keyword(s):  
Black Holes ◽  
Quasinormal Mode ◽  
Mini Black Holes

scholarly journals Pseudospectrum and Black Hole Quasinormal Mode Instability

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
José Luis Jaramillo ◽  
Rodrigo Panosso Macedo ◽  
Lamis Al Sheikh
Keyword(s):  
Black Hole ◽  
Quasinormal Mode ◽  
Mode Instability

scholarly journals Asymptotic quasinormal modes of string-theoretical d-dimensional black holes

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Filipe Moura ◽  
João Rodrigues
Keyword(s):  
Differential Equation ◽  
Black Holes ◽  
Complex Plane ◽  
Quasinormal Modes ◽  
Scalar Fields ◽  
Einstein Gravity ◽  
Quasinormal Mode ◽  
Spherically Symmetric ◽  
Gravitational Perturbations

Abstract We compute the quasinormal frequencies of d-dimensional spherically symmetric black holes with leading string α′ corrections for tensorial gravitational perturbations in the highly damped regime. We solve perturbatively the master differential equation and we compute the monodromies of the master perturbation variable (analytically continued to the complex plane) in different contours, in order to obtain the quasinormal mode spectra. We proceed analogously for the quasinormal modes of test scalar fields. Differently than in Einstein gravity, we obtain distinct results for the two cases.

scholarly journals Dirac quasinormal modes of MSW black holes

2014 ◽  
Vol 29 (05) ◽  
pp. 1450019 ◽  
Author(s):  
Saneesh Sebastian ◽  
V. C. Kuriakose
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Imaginary Part ◽  
Approximation Method ◽  
Quasinormal Modes ◽  
Quasinormal Mode ◽  
Wkb Approximation

In this paper, we study the Dirac quasinormal modes of an uncharged 2+1 black hole proposed by Mandal et al. and referred to as MSW black hole. The quasinormal mode is studied using WKB approximation method. The study shows that the imaginary part of quasinormal frequencies increases indicating that the oscillations are damping and hence the black hole is stable against Dirac perturbations.

scholarly journals Quasinormal mode analysis in BEC acoustic black holes

2007 ◽  
Vol 75 (8) ◽  
Author(s):  
C. Barceló ◽  
A. Cano ◽  
L. J. Garay ◽  
G. Jannes
Keyword(s):  
Black Holes ◽  
Quasinormal Mode ◽  
Mode Analysis ◽  
Acoustic Black Holes

scholarly journals Numerical study of the quasinormal mode excitation of Kerr black holes

2006 ◽  
Vol 74 (8) ◽  
Author(s):  
Ernst Nils Dorband ◽  
Emanuele Berti ◽  
Peter Diener ◽  
Erik Schnetter ◽  
Manuel Tiglio
Keyword(s):  
Black Holes ◽  
Numerical Study ◽  
Quasinormal Mode ◽  
Mode Excitation ◽  
Kerr Black Holes
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