A multinode quantum network over a metropolitan area
- URL: http://arxiv.org/abs/2309.00221v1
- Date: Fri, 1 Sep 2023 02:49:19 GMT
- Title: A multinode quantum network over a metropolitan area
- Authors: Jian-Long Liu, Xi-Yu Luo, Yong Yu, Chao-Yang Wang, Bin Wang, Yi Hu,
Jun Li, Ming-Yang Zheng, Bo Yao, Zi Yan, Da Teng, Jin-Wei Jiang, Xiao-Bing
Liu, Xiu-Ping Xie, Jun Zhang, Qing-He Mao, Xiao Jiang, Qiang Zhang, Xiao-Hui
Bao, Jian-Wei Pan
- Abstract summary: We report on the debut implementation of a multi-node entanglement-based quantum network over a metropolitan area.
We demonstrated heralded entanglement generation between two quantum nodes situated 12.5 km apart.
Our work provides a metropolitan-scale testbed for the evaluation and exploration of multi-node quantum network protocols.
- Score: 24.45740554967777
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Towards realizing the future quantum internet, a pivotal milestone entails
the transition from two-node proof-of-principle experiments conducted in
laboratories to comprehensive, multi-node setups on large scales. Here, we
report on the debut implementation of a multi-node entanglement-based quantum
network over a metropolitan area. We equipped three quantum nodes with atomic
quantum memories and their telecom interfaces, and combined them into a
scalable phase-stabilized architecture through a server node. We demonstrated
heralded entanglement generation between two quantum nodes situated 12.5 km
apart, and the storage of entanglement exceeding the round-trip communication
time. We also showed the concurrent entanglement generation on three links. Our
work provides a metropolitan-scale testbed for the evaluation and exploration
of multi-node quantum network protocols and starts a new stage of quantum
internet research.
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