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

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

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)259-264
Number of pages6
JournalScience (New York, N.Y.)
Volume372
Issue number6539
DOIs
Publication statusPublished - 2021

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