Programmable atom-photon quantum interface
Christoph Kurz, Pascal Eich, Michael Schug, Philipp M\"uller, J\"urgen, Eschner
TL;DR
This paper demonstrates a versatile quantum interface using a trapped ion and single photons, capable of converting, entangling, and frequency converting quantum states, advancing hybrid quantum network technologies.
Contribution
It introduces a programmable atom-photon interface that can perform multiple quantum operations, a novel integration for hybrid quantum networks.
Findings
Successfully implemented a bi-directional atom-photon state converter
Demonstrated entangled atom-photon state generation
Achieved quantum frequency conversion of single photons
Abstract
We present the implementation of a programmable atom-photon quantum interface, employing a single trapped Ca ion and single photons. Depending on its mode of operation, the interface serves as a bi-directional atom-photon quantum-state converter, as a source of entangled atom-photon states, or as a quantum frequency converter of single photons. The interface lends itself particularly to interfacing ions with single or entangled photons in hybrid quantum networks.
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