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Quantum Improved Regular Kerr Black Holes

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arxiv 2308.16356 v3 pith:QFD2BPI4 submitted 2023-08-30 hep-th gr-qc

Chiang-Mei Chen , Yi Chen , Akihiro Ishibashi , Nobuyoshi Ohta This is my paper · ORCID
classification hep-thgr-qc
keywords blackholeskerrquantumholeidentificationpropertiesregular
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abstract

We study the quantum improvement of Kerr black holes with mass-dependent scale identifications in asymptotically safe gravity. We find that a physically sensible identification can only be a function of $Mr$ and the area $A=4\pi(r^2+a^2)$ where $M$ is the mass of the black hole and $a$ is an angular momentum parameter. We then discuss various properties of the rotating quantum black holes for a simple choice of the identification. We show that the resulting regular rotating black holes have the following nice properties: (i) admitting a consistent black hole thermodynamics at the horizon, (ii) resolving the ring singularity, (iii) partially eliminating closed time-like curves present in the classical Kerr black holes.

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Cited by 3 Pith papers

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

  1. GUP Effective Metric Without GUP: Implications for the Sign of GUP Parameter and Quantum Bounce

    gr-qc 2025-05 conditional novelty 7.0 of 10

    A logarithmic entropy correction, combined with the GEVAG varying-G correspondence, yields a metric whose Hawking temperature exactly matches the GUP temperature, implying a negative GUP parameter under the strict Bek...

  2. Ringdown waves from hairy black holes

    gr-qc 2026-03 unverdicted novelty 6.0 of 10

    Ringdown frequency and damping shifts of Schwarzschild/Kerr black holes are expressed through the density and anisotropic pressures of the surrounding matter, giving a perturbative map from hairy-black-hole models to ...

  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.

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