Instability of regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes

Abstract

We studied the instability of the regularized 4D charged Einstein-Gauss-Bonnet de-Sitter black holes under charged scalar perturbations. The unstable modes satisfy the superradiant condition, but not all modes satisfying the superradiant condition are unstable. The instability occurs when the cosmological constant is small and the black hole charge is not too large. The Gauss-Bonnet coupling constant makes the unstable black hole more unstable when both the black hole charge and cosmological constant are small, and makes the stable black hole more stable when the black hole charge is large.

22 pages, 10 figures

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Cited by in corpus (16)

• The 4D Einstein-Gauss-Bonnet Theory of Gravity: A Review
• Superradiance evolution of black hole shadows revisited
• Shadow and stability of quantum-corrected black holes
• Black Holes in the Scalar-Tensor Formulation of 4D Einstein-Gauss-Bonnet Gravity: Uniqueness of Solutions, and a New Candidate for Dark Matter
• Quasinormal modes and Hawking radiation of a charged Weyl black hole
• Polarized image of an equatorial emitting ring around a 4D Gauss-Bonnet black hole
• Page Curves of Reissner-Nordström Black Hole in HD Gravity
• Tidal effects in 4D Einstein-Gauss-Bonnet Black Hole Spacetime
• Optical features of AdS black holes in the novel 4D Einstein-Gauss-Bonnet gravity coupled to nonlinear electrodynamics
• Eikonal quasinormal modes, photon sphere and shadow of a charged black hole in the 4D Einstein-Gauss-Bonnet gravity
• Massive scalar field perturbations of 4D de Sitter Einstein-Gauss-Bonnet black holes
• Gauss-Bonnet holographic superconductors in lower-dimensions
• Quasinormal modes and ringdown waveform of the Frolov black hole
• Extraction of energy from a black hole in Einstein-Maxwell-scalar theory
• Superradiant dark matter production from primordial black holes: Impact of multiple modes and gravitational wave emission
• Nonlinear Evolution of unstable Charged de Sitter Black Holes with Hyperboloidal Formalism