Generation of frequency multiplexed entangled single photons assisted by the entanglement

TL;DR

This paper proposes a scheme to generate frequency multiplexed entangled single photons using atomic mixtures, enabling repeated generation for quantum communication applications like wavelength division multiplexing quantum key distribution.

Contribution

The novel scheme leverages atomic mixture entanglement and timing control to produce repeatable frequency multiplexed entangled photons for quantum networks.

Findings

Successful generation of frequency multiplexed entangled photons

Potential application in wavelength division multiplexing QKD

Repeatable photon generation until success

Abstract

We present a scheme to generate the frequency multiplexed entangled (FME) single photons based on the entanglement between two species atomic mixture ensemble. The write and reads fields driven according to a certain timing sequence, the generation of FME single photons can be repeated until success is achieved. The source might have significant applications in wavelength division multiplexing quantum key distribution.