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gr-qc2023
Phase diagrams of quasinormal frequencies for Schwarzschild, Kerr, and Taub-NUT black holes
Chen Lan, Meng-Hu Li, Yan-Gang Miao
The Newman-Janis algorithm, which involves complex-coordinate transformations, establishes connections between static and spherically symmetric black holes and rotating and/or axia…
gr-qc2021
Entropy and Topology of Regular Black Holes
Chen Lan, Yan-Gang Miao
We calculate the entropy of spherically symmetric regular black holes by the path integral and Noether-charge method. Both methods provide an evidence that the entropy of regular b…