Dirac quasinormal modes in spherically symmetric regular black holes

Jin Li, Hong Ma, and Kai Lin
Phys. Rev. D 88, 064001 – Published 3 September 2013

Abstract

Using the WKB approximation, massless and massive Dirac quasinormal modes (QNMs) are studied in spherically symmetric regular spacetimes. We analyze the relationships between QNM frequencies and the parameters (angular momentum number l, magnetic monopole charge β, and the mass of the field m) and discuss the extreme charge of magnetic monopole βe for spherically symmetric regular black holes. Furthermore, we apply an expansion method to expand QNMs in inverse powers of L=l+1/2 and confirm good precision with l>n. Finally, we improve the traditional finite difference method to be available in the massive Dirac case and illuminate the dynamical evolution of the massive Dirac field.

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  • Received 17 May 2013

DOI:https://doi.org/10.1103/PhysRevD.88.064001

© 2013 American Physical Society

Authors & Affiliations

Jin Li* and Hong Ma

  • Department of Physics, Chongqing University, Chongqing 401331, China

Kai Lin

  • Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, Brazil

  • *cqstarv@hotmail.com
  • michaelmahong@126.com
  • lk314159@hotmail.com

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Issue

Vol. 88, Iss. 6 — 15 September 2013

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