scholarly journals Quasinormal Mode Oscillations in an Analogue Black Hole Experiment

2020 ◽  
Vol 125 (1) ◽  
Author(s):  
Theo Torres ◽  
Sam Patrick ◽  
Maurício Richartz ◽  
Silke Weinfurtner
Keyword(s):  
Black Hole ◽  
Quasinormal Mode

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 BLACK HOLE QUASINORMAL MODE SPECTROSCOPY WITHLISA

2009 ◽  
Vol 698 (1) ◽  
pp. 562-566 ◽  
Author(s):  
Manish M. Jadhav ◽  
Lior M. Burko
Keyword(s):  
Black Hole ◽  
Quasinormal Mode ◽  
Mode Spectroscopy

scholarly journals ASYMPTOTIC QUASINORMAL MODES OF d-DIMENSIONAL SCHWARZSCHILD BLACK HOLE WITH GAUSS–BONNET CORRECTION

2006 ◽  
Vol 21 (17) ◽  
pp. 3565-3574 ◽  
Author(s):  
SAYAN K. CHAKRABARTI ◽  
KUMAR S. GUPTA
Keyword(s):  
Black Hole ◽  
Quasinormal Modes ◽  
Quasinormal Mode ◽  
Minimum Length ◽  
Length Scale ◽  
Schwarzschild Black Hole ◽  
Analytic Expression ◽  
Models Of Gravity ◽  
Minimum Length Scale ◽  
Bonnet Term

We obtain an analytic expression for the highly damped asymptotic quasinormal mode frequencies of the (d ≥ 5)-dimensional Schwarzschild black hole modified by the Gauss–Bonnet term, which appears in string derived models of gravity. The analytic expression is obtained under the string inspired assumption that there exists a minimum length scale in the system and in the limit when the coupling in front of the Gauss–Bonnet term in the action is small. Although there are several similarities of this geometry with that of the Schwarzschild black hole, the asymptotic quasinormal mode frequencies are quite different. In particular, the real part of the asymptotic quasinormal frequencies for this class of single horizon black holes is not proportional to log (3).

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 Constraints on quasinormal-mode frequencies with LIGO-Virgo binary–black-hole observations

2021 ◽  
Vol 103 (12) ◽  
Author(s):  
Abhirup Ghosh ◽  
Richard Brito ◽  
Alessandra Buonanno
Keyword(s):  
Black Hole ◽  
Quasinormal Mode ◽  
Binary Black Hole

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 Scalar and electromagnetic quasinormal modes of an extended black hole in F(R) gravity

2015 ◽  
Vol 30 (05) ◽  
pp. 1550012 ◽  
Author(s):  
Saneesh Sebastian ◽  
V. C. Kuriakose
Keyword(s):  
Black Hole ◽  
Scalar Field ◽  
Imaginary Part ◽  
Quasinormal Modes ◽  
Quasinormal Mode ◽  
Wkb Method ◽  
Third Order ◽  
Absolute Value ◽  
The Third ◽  
The Absolute

In this paper, we study the scalar and electromagnetic perturbations of an extended black hole in F(R) gravity. The quasinormal modes in two cases are evaluated and studied their behavior by plotting graphs in each case. To study the quasinormal mode, we use the third-order WKB method. The present study shows that the absolute value of imaginary part of complex quasinormal modes increases in both cases, thus the black hole is stable against these perturbations. As the mass of the scalar field increases the imaginary part of the frequency decreases. Thus, damping slows down with increasing mass of the scalar field.

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