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Non-singular black hole by gravitational decoupling and some thermodynamic properties

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arxiv 2405.05370 v2 pith:36NA6SNB submitted 2024-05-08 gr-qc

Maxim Misyura , Angel Rincon , Vitalii Vertogradov This is my paper · ORCID
classification gr-qc
keywords blackobtainsolutionsdecouplinggravitationalnon-singulareinsteinfield
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Gravitational decoupling allows to obtain new solutions of general relativity. In this paper, we obtain new solutions of the Einstein field equations which describe non-singular black holes. We consider Hayward and Bardeen regular black holes as seed spacetimes and apply gravitational decoupling to obtain a new non-singular solution. We show that anisotropic energy-momentum tensor can spoil the regularity condition in the centre of a black hole. We solve the Einstein field equation and obtain new solutions that possess a de Sitter core and have Schwarzschild behaviour in infinity. We also analyse the thermodynamic properties of the obtained solutions.

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Cited by 11 Pith papers

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

  1. Quasinormal modes of a quantum inspired black hole in four dimensions with cosmological constant

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Quasinormal frequencies for scalar and Dirac perturbations of a Kazakov-Solodukhin-type quantum black hole with Lambda are computed by WKB and characteristic integration; all modes are stable and the quantum parameter...

  2. Coherent quantum hairy black holes from gravitational decoupling: regularity, geodesics, and scalar ringdown

    hep-th 2026-02 conditional novelty 6.0 of 10

    Gaussian-smearing the gravitational-decoupling hairy black hole produces a regular core and modified photon rings, lensing, and a claimed but absent ringdown spectrum.

  3. Null geodesics, causal structure, and matter accretion in Lorentzian-Euclidean black holes

    gr-qc 2025-07 reject novelty 5.0 of 10

    In the Lorentzian-Euclidean black hole, photons and massive particles are claimed to be unable to cross the event horizon, making the spacetime geodesically complete and avoiding the central singularity.

  4. Hair imprints of the gravitational decoupling and hairy black hole spectroscopy

    gr-qc 2025-06 conditional novelty 5.0 of 10

    The quasinormal mode frequencies of three gravitational-decoupling hairy black holes differ from matched Reissner-Nordström black holes by more than the estimated WKB error for the first metric, giving a theoretical h...

  5. Regular Black Hole Formation and Gamma-Ray Burst from Matter Conversion

    gr-qc 2026-07 conditional novelty 4.0 of 10

    The formation of a regular black hole could release gamma-ray-burst-scale energy only if its singularity-avoiding core is a weak perturbation of Schwarzschild.

  6. Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties

    gr-qc 2025-12 conditional novelty 4.0 of 10

    For the regular hairy black hole metric (29), larger β shrinks the ISCO and photon sphere, reduces QNM damping, and adds a canonical-ensemble stable phase.

  7. Energy Extraction and Evolution of Regular Black Holes: The Case of Bardeen Spacetime

    gr-qc 2025-08 reject novelty 4.0 of 10

    A Bardeen regular black hole could evolve into a singular black hole if a charged Penrose process drains its magnetic charge.

  8. Barotropic Equation of State and Nonlinear Electrodynamics in Dynamical Black Hole Spacetimes

    gr-qc 2025-04 reject novelty 4.0 of 10

    The paper's identification of the Husain solution's integration constant with nonlinear electrodynamics charges is undermined by internal inconsistencies in the reconstruction.

  9. Formation of regular black hole from baryonic matter

    gr-qc 2025-02 conditional novelty 4.0 of 10

    A family of regular black hole collapse solutions is built by imposing a de Sitter core and matching to a Husain exterior; the shadow radius grows with the barotropic parameter alpha.

  10. Signatures of a de Sitter-core black hole in ringing, transmission and optical appearance

    gr-qc 2024-12 unverdicted novelty 4.0 of 10

    A regular black hole with a de Sitter core would oscillate at slightly different frequencies, transmit less Hawking radiation, evaporate more slowly, and cast a slightly smaller, dimmer shadow than a Schwarzschild bla...

  11. Minimally Deformed Regular Bardeen Black Hole Solutions in Rastall Theory

    gr-qc 2024-12 reject novelty 4.0 of 10

    Two minimally deformed Bardeen black hole solutions are constructed in Rastall gravity, but the deformation functions are not given explicitly and the horizon condition is not verified.

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