Perturbations of massless external fields on magnetically charged black holes in string-inspired Euler-Heisenberg theory

Abstract

In this paper, we study the perturbations of massless scalar and electromagnetic fields on the magnetically charged black holes in string-inspired Euler-Heisenberg theory. We calculate the quasinormal frequencies (QNFs) and discuss influences of black hole magnetic charge $Q_m$, coupling parameter $\epsilon$ and angular momentum $l$ on QNFs, emphasizing the relationship between these parameters and QNMs behavior. We find these results obtained through the AIM method are in good agreement with those of obtained by WKB method. The greybody factor is calculated by WKB method. The effects of these parameters $Q_m$ and $\epsilon$ on the greybody factor are also studied.

21 pages, 13 figures, 2tables. accepted by Chinese Physics C

References in corpus (5)

• Higher order WKB formula for quasinormal modes and grey-body factors: recipes for quick and accurate calculations
• Accretion disks around the Gibbons-Maeda-Garfinkle-Horowitz-Strominger charged black holes
• Nonsingular black holes in nonlinear gravity coupled to Euler-Heisenberg electrodynamics
• Phase transitions and regions of stability in Reissner-Nordström holographic superconductors
• Mimetic Euler-Heisenberg theory, charged solutions and multi-horizon black holes

Cited by in corpus (1)

• Quasinormal modes and greybody factors of magnetically charged de Sitter black holes probed by massless external fields in Einstein Euler Heisenberg gravity