The occurrence of Bell non-locality, observations that cannot be explained in terms of local influences, is one of the most remarkable features of quantum theory. A new test of non-locality, tailored for quantum networks, has now been implemented in a network with two independent quantum sources.
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Branciard, C. Violation of bilocality in quantum networks. Nat. Photonics 13, 662–663 (2019). https://doi.org/10.1038/s41566-019-0522-3
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DOI: https://doi.org/10.1038/s41566-019-0522-3
