Classical resolution of black hole singularities via wormholes

Abstract

In certain extensions of General Relativity, wormholes generated by spherically symmetric electric fields can resolve black hole singularities without necessarily removing curvature divergences. This is shown by studying geodesic completeness, the behavior of time-like congruences going through the divergent region, and by means of scattering of waves off the wormhole. This provides an example of the logical independence between curvature divergences and space-time singularities, concepts very often identified with each other in the literature.ns of curvature divergences in the context of space-time singularities.

6 pages, 4 figures; several improvements in main body and abstract; final version to appear in Eur. Phys. J. C

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• Opening the Pandora's box at the core of black holes
• What is a singular black hole beyond General Relativity?
• Mapping nonlinear gravity into General Relativity with nonlinear electrodynamics
• Nonsingular black holes, wormholes, and de Sitter cores from anisotropic fluids
• Unveiling the Dynamics of the Universe
• Non-polynomial Lagrangian approach to Regular Black Holes
• Ricci-Based Gravity theories and their impact on Maxwell and nonlinear electromagnetic models
• Palatini $f(R)$ gravity in the solar system: post-Newtonian equations of motion and complete PPN parameters
• Nonsingular black holes in nonlinear gravity coupled to Euler-Heisenberg electrodynamics
• Nonlinear $\sigma$-models in the Eddington-inspired Born-Infeld Gravity
• On black bounce space-times in non-linear electrodynamics
• Polytropic stars in Palatini gravity
• Black hole solutions in mimetic Born-Infeld gravity
• Absorption by black hole remnants in metric-affine gravity
• Strange stars in $f(\mathcal{R})$ gravity Palatini formalism and gravitational wave echoes from them
• Palatini wormholes and energy conditions from the prism of General Relativity
• Towards the Quantization of Eddington-inspired-Born-Infeld Theory
• Effective interactions in Ricci-Based Gravity models below the non-metricity scale
• Scalar geons in Born-Infeld gravity
• Mass inflation in Eddington-inspired Born-Infeld black holes: analytical scaling solutions
• Probing Palatini-type gravity theories through gravitational wave detections via quasinormal modes
• Black hole solutions in functional extensions of Born-Infeld gravity
• Quasi-normal modes of massless scalar fields for charged black holes in the Palatini-type gravity
• Accelerated observers and the notion of singular spacetime
• Geodesically complete BTZ-type solutions of $2+1$ Born-Infeld gravity
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• Singular Instantons in Eddington-inspired-Born-Infeld Gravity
• Multicenter solutions in Eddington-inspired Born-Infeld gravity
• Motion of Spinning Particles around Electrically Charged Black Hole in Eddington-inspired Born-Infeld Gravity
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• Regular Instantons in the Eddington-inspired-Born-Infeld Gravity: Lorentzian Wormholes from Bubble Nucleations
• The Palatini star: exact solutions of the modified Lane-Emden equation
• Scalar perturbations of Eddington-inspired Born-Infeld braneworld
• A non-trivial connection for the metric-affine Gauss-Bonnet theory in $D=4$
• Wormholes with matter haunted by conformally coupled ghosts
• An infinite class of exact rotating black hole metrics of modified gravity
• Quantum Black Hole as a Harmonic Oscillator from the Perspective of the Minimum Uncertainty Approach
• Extremal cosmological black holes in Horndeski gravity and the anti-evaporation regime
• Fractional charges and Misner-Wheeler charge without charge effect in metamaterials