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Magnetically charged black-bounce solution via nonlinear electrodynamics in a k-essence theory

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arxiv 2409.09182 v2 pith:3B4BSDC2 submitted 2024-09-13 gr-qc hep-th

Magnetically charged black-bounce solution via nonlinear electrodynamics in a k-essence theory

Carlos F. S. Pereira , Denis C. Rodrigues , Marcos V. de S. Silva , J\'ulio C. Fabris , Manuel E. Rodrigues , H. Belich This is my paper
classification gr-qc hep-th
keywords fieldk-essenceanalyticalanalyzechargedelectrodynamicsmagneticallynonlinear
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In the present work, we obtain and analyze a new class of analytical solutions of magnetically charged black bounces in k-essence theory, spherically symmetric in (3+1)-dimensions, coupled to nonlinear electrodynamics (NED). We consider two metric models, Simpson-Visser and Bardeen, for the k-essence configurations n = 1/3 and n = 1/5. We obtain in an analytical way which scalar field, field potential, and Lagrangian NED are necessary to support the metrics. We analyze the behavior of these quantities and the energy conditions due to the scalar field and the NED.

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Cited by 5 Pith papers

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

  1. 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.

  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. 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.

  4. 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.

  5. Black Hole Solutions with Electric and Magnetic Charges in Nonlinear Electrodynamic

    gr-qc 2024-09 unverdicted novelty 3.0

    A review proposing matrix bootstrap as a high-precision positivity-based substitute for Monte Carlo simulations in studying BFSS, IKKT, and BMN matrix models linked to holography and gravity.