Black Hole Superradiance in the Presence of Lorentz Symmetry Violation

Abstract

In this paper we consider the massive scalar perturbation on the top of a small spinning-like black hole in context of Einstein-bumblebee modified gravity in order to probe the role of spontaneous Lorentz symmetry breaking on the superradiance scattering and corresponding instability. We show that at the low-frequency limit of the scalar wave the superradiance scattering will be enhanced with the Lorentz-violating parameter $\alpha <0$ and will be weakened with $\alpha >0$. Moreover, by addressing the black hole bomb issue, we extract an improved bound in the instability regime indicating that $\alpha <0$ increases the parameter space of the scalar field instability, while $\alpha >0$ decreases it.

18 pages, 4 figures, to appear in PRD

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Cited by in corpus (9)

• Superradiance evolution of black hole shadows revisited
• Thermodynamics and Shadows of GUP-corrected Black Holes with Topological Defects in Bumblebee Gravity
• Magnetic Reconnection and Energy Extraction from a Spinning Black Hole with Broken Lorentz Symmetry
• Probing the Lorentz Invariance Violation via Gravitational Lensing and Analytical Eigenmodes of Perturbed Slowly Rotating Bumblebee Black Holes
• Spontaneous Lorentz symmetry breaking effects on GRBs jets arising from neutrino pair annihilation process near a black hole
• Lifetime of scalar cloud formation around a rotating regular black hole
• Rotating Black Hole in Kalb-Ramond Gravity: Constraining Parameters by Comparison with EHT Observations of Sgr A* and M87*
• Shedding new light on the absence of fermionic superradiance and maximal infalling rate of fermions into a black hole
• Kerr-Sen-like Lorentz violating black holes and Superradiance phenomena