Experimental violation of local realism by four-photon greenberger-horne-zeilinger entanglement

Zhi Zhao; Tao Yang; Yu Ao Chen; An Ning Zhang; Marek Żukowski; Jian Wei Pan

doi:10.1103/PhysRevLett.91.180401

Experimental violation of local realism by four-photon greenberger-horne-zeilinger entanglement

Zhi Zhao
, Tao Yang
, Yu Ao Chen
, An Ning Zhang
, Marek Żukowski
, Jian Wei Pan

Research output: Contribution to journal › Article › peer-review

168 Citations (Scopus)

Abstract

We report the first experimental violation of local realism by four-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. In the experiment, the nonstatistical GHZ conflicts between quantum mechanics and local realism are confirmed, within the experimental accuracy, by four specific measurements of polarization correlations between four photons. In addition, our experimental results also demonstrate a strong violation of Mermin-Ardehali-Belinskii-Klyshko inequality by 76 standard deviations. Such a violation can only be attributed to genuine four-photon entanglement.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.91.180401
Publication status	Published - 2003
Externally published	Yes

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10.1103/PhysRevLett.91.180401

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abstract = "We report the first experimental violation of local realism by four-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. In the experiment, the nonstatistical GHZ conflicts between quantum mechanics and local realism are confirmed, within the experimental accuracy, by four specific measurements of polarization correlations between four photons. In addition, our experimental results also demonstrate a strong violation of Mermin-Ardehali-Belinskii-Klyshko inequality by 76 standard deviations. Such a violation can only be attributed to genuine four-photon entanglement.",

author = "Zhi Zhao and Tao Yang and Chen, \{Yu Ao\} and Zhang, \{An Ning\} and Marek {\.Z}ukowski and Pan, \{Jian Wei\}",

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AU - Zhao, Zhi

AU - Yang, Tao

AU - Chen, Yu Ao

AU - Zhang, An Ning

AU - Żukowski, Marek

AU - Pan, Jian Wei

PY - 2003

Y1 - 2003

N2 - We report the first experimental violation of local realism by four-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. In the experiment, the nonstatistical GHZ conflicts between quantum mechanics and local realism are confirmed, within the experimental accuracy, by four specific measurements of polarization correlations between four photons. In addition, our experimental results also demonstrate a strong violation of Mermin-Ardehali-Belinskii-Klyshko inequality by 76 standard deviations. Such a violation can only be attributed to genuine four-photon entanglement.

AB - We report the first experimental violation of local realism by four-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. In the experiment, the nonstatistical GHZ conflicts between quantum mechanics and local realism are confirmed, within the experimental accuracy, by four specific measurements of polarization correlations between four photons. In addition, our experimental results also demonstrate a strong violation of Mermin-Ardehali-Belinskii-Klyshko inequality by 76 standard deviations. Such a violation can only be attributed to genuine four-photon entanglement.

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DO - 10.1103/PhysRevLett.91.180401

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VL - 91

JO - Physical Review Letters

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Experimental violation of local realism by four-photon greenberger-horne-zeilinger entanglement

Abstract

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