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  1. stephenrgreen.com

    This process repeats, with the amplitude of the wave growing exponentially, in a process known as the superradiant instability or black hole bomb. Ultimately nonlinear effects will take over and the black hole may lose sufficient charge or angular momentum for superradiance to cease, but in general the end point of the instability is unknown.
  2. journals.aps.org

    Nonlinear evolution and nal fate of charged AdS black hole superradiant instability: Supplemental Material Pablo Bosch,1,2, Stephen R. Green, 2,yand Luis Lehner z 1Department of Physics & Astronomy and Guelph-Waterloo Physics Institute University of Waterloo, Waterloo, Ontario N2L 3G1, Canada ...
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  4. damtp.cam.ac.uk

    "StronGrHEP" 690904 Midterm Meeting La Sapienza University Rome, 22-23 Jun 2017 1 ... Non-linear superradiant instability Structure of stars with dark cores Collisions of hairy black holes Bounds on particle masses using gravity Black holes with scalar fields
  5. link.aps.org

    The superradiant instability of rotating black holes with negative cosmological constant is studied by numerically solving the full 3+1-dimensional Einstein equations. We nd evidence for an epoch dominated by a solution with a single helical Killing vector and a multi-stage process with distinct superradiant instabilities.
    Author:Paul M. Chesler, David A. LowePublished:2019
  6. journals.aps.org

    Jan 3, 2024Electromagnetic field confinement due to plasma near accreting black holes can trigger superradiant instabilities at the linear level, limiting the spin of black holes and providing novel astrophysical sources of electromagnetic bursts. However, nonlinear effects might jeopardize the efficiency of the confinement, rending superradiance ineffective. Motivated by understanding nonlinear ...
  7. link.aps.org

    related to the nonlinear behavior of the superradiant instability of massive bosonic elds around a spin-ning BH. We focus on the case of a vector eld, as it exhibits faster growth than a scalar eld. The lin-ear regime of the instability for Proca elds has been studied before in various limits [11, 14, 18{20]. Here
  8. physics.aps.org

    Though details of the nonlinear growth and saturation of the rotational superradiant instability will be important to help observe or rule out such massive fields, there are presently few results of relevance to this regime where the backreaction on the BH is significant. In Ref. [16],itwas found that, for sufficiently large GWs superradiantly
  9. link.springer.com

    A full nonlinear evolution of the Einstein-Klein-Gordon system in a confining mirror was recently performed ; the results were promising but numerically unstable on time scales too short to observe superradiant-induced growth of the scalar, or to probe the end-state of the instability. This remains an open issue to date.
  10. researchgate.net

    Apr 6, 2023The evaluation of stability and instability in this study will be based on the absence and presence of the magnetic field, respectively, when the magnetic field constant is c 4 = 0 and c 4 = 0.
  11. Apr 6, 2023This work is dedicated to the investigation of the superradiant stability of a rotating black hole derived from the nonlinear Maxwell theory of gravity, f(R). The evaluation of stability and instability in this study will be based on the absence and presence of the magnetic field, respectively, when the magnetic field constant is c4=0 and c4≠0. For the black hole under discussion, analyses ...

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