Single atom optical gate and single photon source based on magnetooptical effects in a waveguide

TL;DR

This paper reports the discovery of strong magnetic field effects on atomic ensembles in waveguides, leading to new schemes for a single photon source and an optical gate with high efficiency.

Contribution

It introduces a novel scheme for a true single photon source and a highly-efficient optical gate based on magnetooptical effects in waveguide-confined atomic ensembles.

Findings

Magnetic field significantly alters spontaneous emission and susceptibility.

Proposed schemes enable efficient single photon generation.

Demonstrated potential for high-performance optical gating.

Abstract

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.