Work

Experimental Violation of Local Realism by Four-Photon Greenberger-Horne-Zeilinger Entanglement

Year: 2003

Type: article

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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.91.180401

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

Institutions: University of Science and Technology of China, University of Gdańsk, University of Vienna

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Chinese Academy of Sciences

OpenAlex ID: W2964108455

FWCI: 7.369

Cites: 26

Cited by: 217

Related to: 10