Abstract
We review recent experiments concerning multi-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. We have experimentally demonstrated GHZ entanglement of up to four photons by making use of pulsed parametric down-conversion. On the basis of measurements on three-photon entanglement, we have realized the first experimental test of quantum non-locality following from the GHZ argument. Not only does multi-particle entanglement enable various fundamental tests of quantum mechanics versus local realism, but it also plays a crucial role in many quantum-communication and quantum-computation schemes.
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Pan, JW., Zeilinger, A. (2002). Multi-Photon Entanglement and Quantum Non-Locality. In: Quantum [Un]speakables. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05032-3_16
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DOI: https://doi.org/10.1007/978-3-662-05032-3_16
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