We have discovered abnormally strong influence of the magnetic field on the optical properties of atomic ensemble confined in a waveguide. We demonstrate qualitative changes in the character of spontaneous emission and single-atom susceptibility. Based on the revealed effects, we propose a new scheme of true single photon source. Furthermore, we propose the highly-efficient optical gate using just one atom.
@article{arxiv.2505.02512,
title = {Single atom optical gate and single photon source based on magnetooptical effects in a waveguide},
author = {A. S. Kuraptsev and I. M. Sokolov},
journal= {arXiv preprint arXiv:2505.02512},
year = {2025}
}