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quant-ph2003★ 216 cited
Experimental Test of Quantum Nonlocality in Four-photon Greenberger-Horne-Zeilinger Entanglement
Zhi Zhao, Tao Yang, Yu-Ao Chen +3
We report the first experimental violation of local realism in four-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. In the experiment, the non-statistical GHZ conflicts betw…
quant-ph2003★ 237 cited
Experimental Realization of Entanglement Concentration and A Quantum Repeater
Zhi Zhao, Tao Yang, Yu-Ao Chen +2
We report an experimental realization of entanglement concentration using two polarization-entangled photon pairs produced by pulsed parametric down-conversion. In the meantime, ou…