3 papers
astro-ph.HE2026
Energy Loss of Newborn Magnetars by Schwinger Process
Chul Min Kim, Sang Pyo Kim, Remo Ruffini +2
We investigate electron--positron pair creation through the Schwinger process in newborn magnetars with millisecond spin periods and surface dipole fields close to or above the QED…
gr-qc2025
3+1 formulation of light modes in nonlinear electrodynamics
Chul Min Kim, Sang Pyo Kim
We present a 3+1 formulation of the light modes in nonlinear electrodynamics described by Plebanski-type Lagrangians, which include Post-Maxwellian, Born-Infeld, ModMax, and Heisen…
astro-ph.HE2024
Strong-field QED effects on polarization states in dipole and quadrudipole pulsar emissions
Dong-Hoon Kim, Chul Min Kim, Sang Pyo Kim
Highly magnetized neutron stars have quantum refraction effects on pulsar emission due to the non-linearity of the quantum electrodynamics (QED) action. In this paper, we investiga…