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gr-qc2026
Vacuum Cherenkov radiation in supercritical magnetic fields
Daniel Gálvez-García, Nora Bretón
In the presence of very intense electromagnetic fields, the refractive index of vacuum is modified such that light velocity is less than and ultrarelativistic charged particles…
gr-qc2026
Remarks on electrical Penrose process for magnetized Reissner-Nordström black hole
A. Baez, Nora Breton, I. Cabrera-Munguia
The energy extraction from a magnetized Reissner-Nordström black hole is analyzed within the framework of the electric Penrose mechanism. The presence of an external magnetic field…