Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states

Abstract The Greenberger–Horne–Zeilinger (GHZ) paradox is an exquisite no-go theorem that shows the sharp contradiction between classical theory and quantum mechanics by ruling out any local realistic description of quantum theory. The investigation of GHZ-type paradoxes has been carried out in a va...

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Autores principales:	Zheng-Hao Liu, Jie Zhou, Hui-Xian Meng, Mu Yang, Qiang Li, Yu Meng, Hong-Yi Su, Jing-Ling Chen, Kai Sun, Jin-Shi Xu, Chuan-Feng Li, Guang-Can Guo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/516e2967f7f24e8abbf7abad7d787d25
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spelling	oai:doaj.org-article:516e2967f7f24e8abbf7abad7d787d252021-12-02T17:39:24ZExperimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states10.1038/s41534-021-00397-z2056-6387https://doaj.org/article/516e2967f7f24e8abbf7abad7d787d252021-04-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00397-zhttps://doaj.org/toc/2056-6387Abstract The Greenberger–Horne–Zeilinger (GHZ) paradox is an exquisite no-go theorem that shows the sharp contradiction between classical theory and quantum mechanics by ruling out any local realistic description of quantum theory. The investigation of GHZ-type paradoxes has been carried out in a variety of systems and led to fruitful discoveries. However, its range of applicability still remains unknown and a unified construction is yet to be discovered. In this work, we present a unified construction of GHZ-type paradoxes for graph states, and show that the existence of GHZ-type paradox is not limited to graph states. The results have important applications in quantum state verification for graph states, entanglement detection, and construction of GHZ-type steering paradox for mixed states. We perform a photonic experiment to test the GHZ-type paradoxes via measuring the success probability of their corresponding perfect Hardy-type paradoxes, and demonstrate the proposed applications. Our work deepens the comprehension of quantum paradoxes in quantum foundations, and may have applications in a broad spectrum of quantum information tasks.Zheng-Hao LiuJie ZhouHui-Xian MengMu YangQiang LiYu MengHong-Yi SuJing-Ling ChenKai SunJin-Shi XuChuan-Feng LiGuang-Can GuoNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Zheng-Hao Liu Jie Zhou Hui-Xian Meng Mu Yang Qiang Li Yu Meng Hong-Yi Su Jing-Ling Chen Kai Sun Jin-Shi Xu Chuan-Feng Li Guang-Can Guo Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
description	Abstract The Greenberger–Horne–Zeilinger (GHZ) paradox is an exquisite no-go theorem that shows the sharp contradiction between classical theory and quantum mechanics by ruling out any local realistic description of quantum theory. The investigation of GHZ-type paradoxes has been carried out in a variety of systems and led to fruitful discoveries. However, its range of applicability still remains unknown and a unified construction is yet to be discovered. In this work, we present a unified construction of GHZ-type paradoxes for graph states, and show that the existence of GHZ-type paradox is not limited to graph states. The results have important applications in quantum state verification for graph states, entanglement detection, and construction of GHZ-type steering paradox for mixed states. We perform a photonic experiment to test the GHZ-type paradoxes via measuring the success probability of their corresponding perfect Hardy-type paradoxes, and demonstrate the proposed applications. Our work deepens the comprehension of quantum paradoxes in quantum foundations, and may have applications in a broad spectrum of quantum information tasks.
format	article
author	Zheng-Hao Liu Jie Zhou Hui-Xian Meng Mu Yang Qiang Li Yu Meng Hong-Yi Su Jing-Ling Chen Kai Sun Jin-Shi Xu Chuan-Feng Li Guang-Can Guo
author_facet	Zheng-Hao Liu Jie Zhou Hui-Xian Meng Mu Yang Qiang Li Yu Meng Hong-Yi Su Jing-Ling Chen Kai Sun Jin-Shi Xu Chuan-Feng Li Guang-Can Guo
author_sort	Zheng-Hao Liu
title	Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
title_short	Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
title_full	Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
title_fullStr	Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
title_full_unstemmed	Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states
title_sort	experimental test of the greenberger–horne–zeilinger-type paradoxes in and beyond graph states
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/516e2967f7f24e8abbf7abad7d787d25
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Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states

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