One-photon communication in atomic media
Quantum Physics
2026-05-22 v1
Abstract
We consider the problem of single-photon transmission through an atomic medium, using quantum channel fidelity to describe the resulting information loss. We find that the normalized fidelity decreases monotonically with coupling strength, establishing a performance bound for quantum communication through such media. Our results hold for several channel types and for deterministic and random media.
Keywords
Cite
@article{arxiv.2605.22797,
title = {One-photon communication in atomic media},
author = {Zixiang Hong and John C. Schotland},
journal= {arXiv preprint arXiv:2605.22797},
year = {2026}
}