https://doi.org/10.1140/epjc/s10052-023-11380-7
Regular Article - Theoretical Physics
Dyon production from near-extremal Kerr–Newman–(anti-)de Sitter black holes
1
Department of Physics, National Central University, 32001, Chungli, Taiwan
2
Center for High Energy and High Field Physics (CHiP), National Central University, 32001, Chungli, Taiwan
3
Department of Physics, Kunsan National University, 54150, Kunsan, Korea
Received:
26
October
2022
Accepted:
4
March
2023
Published online:
16
March
2023
Using the enhanced symmetry in the near-horizon region of the near-extremal dyonic Kerr–Newman (KN) black hole in the (A)dS space, we find the exact solutions for dyonic charged scalar field in terms of the hypergeometric function and explicitly compute the Schwinger effect for the emission of electric and/or magnetic charges. The emission formula confirms a universal factorization of the Schwinger formula in the AdS
and another Schwinger formula in the two-dimensional Rindler space determined by the effective temperature and the Hawking temperature with the chemical potentials of electric and/or magnetic charges and the angular momentum. The emission of the same species of charges from the KN black hole is enhanced in the AdS boundary while it is suppressed in the dS boundary. In addition, the dragging of particles in the KN black hole diminishes the emission of charges in both AdS and dS spaces. The AdS geometry of near-horizon gives the Breitenloher–Freedman (BF) bound, within which the stability of dyonic KN black holes is guaranteed against both the emission of charges and Hawking radiation.
Chiang-Mei Chen and Sang Pyo Kim contributed equally to this work.
© The Author(s) 2023
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