Quasinormal modes and Strong Cosmic Censorship in the regularised 4D Einstein-Gauss-Bonnet gravity

Abstract

The fate of strong cosmic censorship is ultimately linked to the extendibility of perturbation across the Cauchy Horizon and known to be violated in the near extremal region of a charged de Sitter black hole. Similar violations can also be realized in higher curvature theories, with the strength of violation becoming stronger as compared to general relativity. In this work, we extend this analysis further to study the validity of strong cosmic censorship conjecture in the context of the regularised four-dimensional Einstein Gauss-Bonnet theory with respect to both scalar and electromagnetic perturbation. We also study the late time tails of scalar fields.

arXiv comment19 pages, 3 figures

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• Anisotropic Stars in 4D Einstein-Gauss-Bonnet Gravity
• Thin accretion disks around rotating black holes in $4D$ Einstein-Gauss-Bonnet gravity
• Black Holes in the Scalar-Tensor Formulation of 4D Einstein-Gauss-Bonnet Gravity: Uniqueness of Solutions, and a New Candidate for Dark Matter
• $4D$ AdS Einstein-Gauss-Bonnet black hole with Yang-Mills field and its thermodynamics
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• Nonsingular black hole chemistry in $4D$ Einstein-Gauss-Bonnet gravity
• Traversable Thin-shell Wormhole in the 4D Einstein-Gauss-Bonnet Theory
• Naked singularity in 4D Einstein-Gauss-Bonnet novel gravity: Echoes and (in)-stability
• A Survey of Strong Cosmic Censorship Conjecture Beyond Einstein's Gravity
• Instability of hairy black holes in regularized 4-dimensional Einstein-Gauss-Bonnet gravity
• Accretion onto a Charged Black Hole in Consistent 4D Einstein-Gauss-Bonnet Gravity
• Topological Corrections and Conformal Backreaction in the Einstein Gauss-Bonnet/Weyl Theories of Gravity at D=4
• Multi-horizons black hole solutions, photon sphere and perihelion shift in weak ghost-free Gauss-Bonnet theory of gravity
• Eikonal quasinormal modes, photon sphere and shadow of a charged black hole in the 4D Einstein-Gauss-Bonnet gravity
• Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
• Collapsing dust thin shells in Einstein-Gauss-Bonnet gravity
• Massive scalar field perturbations of 4D de Sitter Einstein-Gauss-Bonnet black holes
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• The Stringy Origins of Galileons and their Novel Limit
• Deflection of charged massive particles by a four-dimensional charged Einstein-Gauss-Bonnet black hole
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• Internal structure and its connection with thermodynamics and dynamics in black holes
• Anisotropic Spacetimes in $f(G)$-gravity: Bianchi I, Bianchi III and Kantowski-Sachs Cosmologies
• Impact of hyperons on structural properties of neutron stars and hybrid stars within the regularized four-dimensional Einstein-Gauss-Bonnet gravity
• Lower-dimensional Gauss-Bonnet gravity black holes with quintessence