Multimode ion-photon entanglement over 101 kilometers of optical fiber

• URL: http://arxiv.org/abs/2308.08891v1
• Date: Thu, 17 Aug 2023 09:56:19 GMT
• Title: Multimode ion-photon entanglement over 101 kilometers of optical fiber
• Authors: V. Krutyanskiy, M. Canteri, M. Meraner, V. Krcmarsky, B. P. Lanyon
• Abstract summary: The ability to establish entanglement between each of the qubits in the node and a separate photon that has travelled over a 101km-long optical fiber is demonstrated. Once extended to more qubits, this multimode approach can be a useful technique to boost entanglement distribution rates in future long-distance quantum networks of light and matter.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A three-qubit quantum network node based on trapped atomic ions is presented. The ability to establish entanglement between each of the qubits in the node and a separate photon that has travelled over a 101km-long optical fiber is demonstrated. By sending those photons through the fiber in close succession, a remote entanglement rate is achieved that is greater than when using only a single qubit in the node. Once extended to more qubits, this multimode approach can be a useful technique to boost entanglement distribution rates in future long-distance quantum networks of light and matter.

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