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On black bounce space-times in non-linear electrodynamics

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arxiv 2403.12897 v3 pith:CP6HGPYR submitted 2024-03-19 gr-qc

On black bounce space-times in non-linear electrodynamics

classification gr-qc
keywords blacksolutionsspace-timesbounceelectrodynamicsnon-linearholesissues
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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One of the main issues in gravitation is the presence of singularities in the most common space-time solutions of General Relativity, as the case of black holes. A way of constructing regular solutions that remove spacelike singularities consists in implement a bounce on such space-time, leading to what is usually known as black bounce space-times. Such space-times are known to describe regular black holes or traversable wormholes. However, one of the main issues lies on reconstructing the appropriate source that leads to such a solution. In this paper, a reconstruction method is implemented to show that such types of metrics can be well accommodated in non-linear electrodynamics with the presence of a scalar field. Some of the most important black bounces solutions are reconstructed in this framework, both in 3+1 as in 2+1 dimensions. For the first time in the literature, these solutions have an electrically charged source of matter from non-linear electrodynamics. Specific features are indicated that distinguish electric sources from magnetic ones, previously found for the same space-times.

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Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Dymnikova Black Holes in Unimodular Gravity: Maxwell Sources and Vacuum Contributions

    gr-qc 2026-05 unverdicted novelty 6.0

    Dymnikova black holes are realized in unimodular gravity with Maxwell sources, yielding regular electric fields and vanishing asymptotic charge.

  2. On regular black string spacetimes in nonlinear electrodynamics

    gr-qc 2026-03 conditional novelty 6.0

    For cylindrical black strings, NED Lagrangians with a Maxwell weak-field limit cannot produce regular purely electric or dyonic cores; regular magnetic Bardeen/Hayward analogues exist but violate causality near the axis.

  3. On regular black string spacetimes in nonlinear electrodynamics

    gr-qc 2026-03 unverdicted novelty 6.0

    No regular purely electric black strings exist in NED recovering the Maxwell limit, but regular cylindrical Bardeen and Hayward analogues are constructed with finite curvature.

  4. Three dimensional black bounces in $f(R)$ gravity

    gr-qc 2026-01 conditional novelty 5.0

    Black bounce geometries exist in 2+1D f(R) gravity with scalar-nonlinear electrodynamics matter, including vanishing scalar curvature solutions whose viability is checked via scalaron mass and energy conditions.

  5. Roche limit and stellar disruption in the Simpson--Visser spacetime

    gr-qc 2026-01 unverdicted novelty 5.0

    Tidal forces in the Simpson-Visser spacetime produce Roche radii for stars that depend on observer type and regularization, with some disruptions occurring outside the event horizon for supermassive black holes.

  6. Scalar-Electromagnetic Couplings as Source of Deformed Black Hole: From Shadows to Thermodynamic Topology

    gr-qc 2026-05 unverdicted novelty 4.0

    A scalar-NED coupled black hole metric is reconstructed from an effective geometry, yielding EHT bounds on magnetic charge, Hawking-Page transition, and topological equivalence to the Reissner-Nordström solution.

  7. Embedding Wormholes and Dyonic Black Strings in Warped Braneworlds via Local Sum Rules

    gr-qc 2026-01 reject novelty 4.0

    Embedding of Ellis-Bronnikov wormhole and NED-sourced magnetic/dyonic black strings into RS braneworlds using Local Sum Rules; the dyonic q→0 limit is inconsistent as written.

  8. Dymnikova Black Holes in Unimodular Gravity: Maxwell Sources and Vacuum Contributions

    gr-qc 2026-05 unverdicted novelty 3.0

    Dymnikova black hole geometry is realized via Maxwell sources in unimodular gravity with radially dependent Lambda, producing a regular electric field from a localized charge distribution that has zero net asymptotic charge.