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arXiv · 2308.16356

Quantum Improved Regular Kerr Black Holes

Chiang-Mei Chen·Yi Chen·Akihiro Ishibashi·Nobuyoshi Ohta
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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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Chiang-Mei Chen, Yi Chen, Akihiro Ishibashi, Nobuyoshi Ohta. 2023-08-30. Quantum Improved Regular Kerr Black Holes. https://arxiv.org/abs/2308.16356

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