Superradiance of charged black holes in Einstein-Gauss-Bonnet Gravity
arXiv:1708.06037 · doi:10.1088/1361-6382/aab3f6
Abstract
In this paper we show that electrically charged black holes in Einstein-Gauss-Bonnet gravity suffer from a superradiant instability. It is triggered by a charged scalar field that fulfills Dirichlet boundary conditions at a mirror located outside the horizon. As in General Relativity, the unstable modes exist provided the mirror is located beyond a critical radius, making the instability a long wavelength one. We explore the effects of the Gauss-Bonnet corrections on the critical radius and find evidence that the critical radius decreases as the Gauss-Bonnet coupling increases. Due to the, up to date, lack of an analytic rotating solution for Einstein-Gauss-Bonnet theory, this is the first example of a superradiant instability in the presence of higher curvature terms in the action.
15 pages, 5 figures. V2: References included and minor typos fixed
References in corpus (14)
- Multiple Reentrant Phase Transitions and Triple Points in Lovelock Thermodynamics
- A Note on Thermodynamics of Black Holes in Lovelock Gravity
- Smarr Formula and an Extended First Law for Lovelock Gravity
- The Lovelock Black Holes
- Critical behavior of charged black holes in Gauss-Bonnet gravity`s rainbow
- Dynamical formation of a Reissner-Nordström black hole with scalar hair in a cavity
- Kerr-Schild ansatz in Einstein-Gauss-Bonnet gravity: An exact vacuum solution in five dimensions
- Five-dimensional rotating black holes in Einstein-Gauss-Bonnet theory
- Slowly Rotating Charged Gauss-Bonnet Black holes in AdS Spaces
- Gravitational instability of static spherically symmetric Einstein-Gauss-Bonnet black holes in five and six dimensions
- Numerical study of superradiant instability for charged stringy black hole-mirror system
- Stability of Lovelock Black Holes under Tensor Perturbations
- Gauss-Bonnet supergravity in six dimensions
- Remarks on the Myers-Perry and Einstein Gauss-Bonnet Rotating Solutions
Cited by in corpus (17)
- Black Hole Superradiance in the Presence of Lorentz Symmetry Violation
- Charged black hole bombs in a Minkowski cavity
- Superradiant stability of the Kerr black holes
- Evading no-hair theorems: hairy black holes in a Minkowski box
- Superradiance and Stability of Kerr Black Hole Enclosed by Anisotropic Fluid Matter
- Diving inside a hairy black hole
- Lifetime of scalar cloud formation around a rotating regular black hole
- Instability and no-hair paradigm in d-dimensional charged-AdS black holes
- Late-time tails, entropy aspects, and stability of black holes with anisotropic fluids
- Analytic study of superradiant stability of Kerr-Newman black holes under charged massive scalar perturbation
- Dyonic Reissner-Nordstrom Black Holes and Superradiant Stability
- Phase diagram of the charged black hole bomb system
- Boson stars and solitons confined in a Minkowski box
- Six-dimensional non-extremal Reissner-Nordstrom black hole, charged massive scalar perturbation and black hole bomb
- Strong cosmic censorship for a scalar field in an Einstein-Maxwell-Gauss-Bonnet-de Sitter black hole
- Kerr-Sen-like Lorentz violating black holes and Superradiance phenomena
- Higher-dimensional non-extremal Reissner-Nordstrom black holes, scalar perturbation and superradiance: an analytical study