Verification of quantum networks using the GHZ paradox

Huan Ye ¹Xue Yang ²Ming-Xing Luo¹

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作者信息

1. School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China
2. School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China;School of Computer Science and Cyber Security,Chengdu University of Technology,Chengdu 610059,China
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Abstract

The Greenberger-Horne-Zeilinger(GHZ)paradox shows that it is possible to create a multipartite state involving three or more particles in which the measurement outcomes of the particles are correlated in a way that cannot be explained by classical physics.We extend it to witness quantum networks.We first extend the GHZ paradox to simultaneously verify the GHZ state and Einstein-Podolsky-Rosen states on triangle networks.We then extend the GHZ paradox to witness the entanglement of chain networks consisting of multiple GHZ states.All the present results are robust against the noise.

Key words

quantum entanglement/GHZ paradox/quantum network

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基金项目

National Natural Science Foundation of China(62172341)

National Natural Science Foundation of China(12204386)

Sichuan Natural Science Foundation(2024NSFSC1365)

Sichuan Natural Science Foundation(2024NSFSC1375)

Sichuan Natural Science Foundation(2023NSFSC0447)

出版年

2024

理论物理通讯(英文版)

中国科学院理论物理研究所中国物理学会

理论物理通讯(英文版)

CSTPCD

影响因子：0.333

ISSN：0253-6102

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