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Quantum optics

Entanglement à trois

Guaranteed entanglement sharing over long distances can be verified by violating a Bell inequality. That's a tricky enough proposition in itself, but what if more than two parties are involved?

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Figure 1: Testing three-party nonlocality in Erven et al.'s experiment.

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Correspondence to Geoff J. Pryde.

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Pryde, G. Entanglement à trois. Nature Photon 8, 275–276 (2014). https://doi.org/10.1038/nphoton.2014.60

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