Dirac field quasinormal modes of a generic class of magnetically charged regular black holes
WANG Chunyan
LIANG Huinan
LIU Huapeng
Abstract：Utilizing a semi-classical approximation approach third-order Wentzel-Kramers-Brillouin(WKB)approximation,a study on the quasinormal modes of massless Dirac field perturbation in a generic class of magnetically charged regular black holes is conducted,therein,three scenarios are mainly expounded:the New-class(ν=1),the Bardeen-class(ν=2),and the Hayward-class(ν=μ)black holes.Initially,the Schrödinger-like equation form of the radial component of the perturbation equation is presented,and the variation of the effective potential function of the perturbation with respect to the spacetime parameters of the black hole background and the total angular quantum number of the perturbation is analyzed.Subsequently,the quasinormal mode frequencies of the massless Dirac perturbations of the three black holes are computed respectively.By imposing constraints on the black hole parameters,the relationships between the quasinormal modes and the spacetime background parameters of the black hole are analyzed.The study of the quasinormal modes of black hole systems is conducive to our analysis of the gravitational wave detection theory.
Keywords：regular black holeDirac field perturbationquasinormal modesthird-order WKB approxi-mation
Publication Date：2025-03-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 45-52 )