Details

Autor(en) / Beteiligte

• Pompili, M
• Hermans, S L N
• Baier, S
• Beukers, H K C
• Humphreys, P C
• Schouten, R N
• Vermeulen, R F L
• Tiggelman, M J
• Dos Santos Martins, L
• Dirkse, B
• Wehner, S
• Hanson, R

Titel

Realization of a multinode quantum network of remote solid-state qubits

Ist Teil von

• Science (American Association for the Advancement of Science), 2021-04, Vol.372 (6539), p.259-264

Ort / Verlag

United States: The American Association for the Advancement of Science

Erscheinungsjahr

2021

Quelle

Science Magazine

Beschreibungen/Notizen

• The distribution of entangled states across the nodes of a future quantum internet will unlock fundamentally new technologies. Here, we report on the realization of a three-node entanglement-based quantum network. We combine remote quantum nodes based on diamond communication qubits into a scalable phase-stabilized architecture, supplemented with a robust memory qubit and local quantum logic. In addition, we achieve real-time communication and feed-forward gate operations across the network. We demonstrate two quantum network protocols without postselection: the distribution of genuine multipartite entangled states across the three nodes and entanglement swapping through an intermediary node. Our work establishes a key platform for exploring, testing, and developing multinode quantum network protocols and a quantum network control stack.