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astro-ph.HE2021
Magnetars as Laboratories for Strong Field QED
Chul Min Kim, Sang Pyo Kim
A strong electromagnetic field polarizes the vacuum and in the presence of an electric field creates pairs of a charged particle and its anti-particle. Magnetars, highly magnetized…
hep-th2021
Dyon Production from Near-Extremal Kerr-Newman-(Anti-)de Sitter Black Holes
Chiang-Mei Chen, Sang Pyo Kim
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 sc…
hep-ph2021
Phase-Integral Formulation of Dynamically Assisted Schwinger Pair Production
Chul Min Kim, Alexander Fedotov, Sang Pyo Kim
We present a phase-integral formulation of dynamically assisted Schwinger pair production of scalar charges to find the pair production density under a strong low-frequency field a…