The Influence of Pulsed Electromagnetic Action on a Quantum Key Distribution
O. S. Belova, D. V. Bolotov, Sergey Yu. Kazantsev, A. V. Klubkov, O. V. Kolesnikov, G. P. Paimtsev, M. A. Yarygin · Russian Electrical Engineering · 2025
Abstract An electric-discharge electromagnetic-field impact results on the operation of a quantum communication installation using phase encoding of information are considered. When simulating close lightning discharges using a pulse voltage generator, a decrease in a sifted key’s generation rate and an increase in quantum bit errors were recorded, but the pulse effect was significantly shorter than the frequency of a quantum key’s formation and could not have a significant effect on the line’s operation. In addition, the heating of the quantum key distribution units as a result of long-term operation can contribute to the change in the quantum communication’s measured parameters.