Optimal GHZ Paradox for Three Qubits

doi:10.1038/srep13080

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	Optimal GHZ Paradox for Three Qubits
	Ren, Changliang; Su, Hong-Yi; Xu, Zhen-Peng; Wu, Chunfeng; Chen, Jing-Ling
刊名	SCIENTIFIC REPORTS
	2015
卷号	5
ISSN号	2045-2322
DOI	10.1038/srep13080
通讯作者	Su, HY (reprint author), Nankai Univ, Chern Inst Math, Div Theoret Phys, Tianjin 300071, Peoples R China.
英文摘要	Quatum nonlocality as a valuable resource is of vital importance in quantum information processing. The characterization of the resource has been extensively investigated mainly for pure states, while relatively less is know for mixed states. Here we prove the existence of the optimal GHZ paradox by using a novel and simple method to extract an optimal state that can saturate the tradeoff relation between quantum nonlocality and the state purity. In this paradox, the logical inequality which is formulated by the GHZ-typed event probabilities can be violated maximally by the optimal state for any fixed amount of purity (or mixedness). Moreover, the optimal state can be described as a standard GHZ state suffering flipped color noise. The maximal amount of noise that the optimal state can resist is 50%. We suggest our result to be a step toward deeper understanding of the role played by the AVN proof of quantum nonlocality as a useful physical resource.
URL标识	查看原文
语种	英语
WOS记录号	WOS:000359488000001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/4344]
专题	微纳制造与系统集成研究中心
作者单位	(1) Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Ctr Quantum Informat, Beijing 100864, Peoples R China; (2) Nankai Univ, Chern Inst Math, Div Theoret Phys, Tianjin 300071, Peoples R China; (3) Singapore Univ Technol & Design, Pillar Engn Product Dev, Singapore 487372, Singapore; (4) Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore
推荐引用方式 GB/T 7714	Ren, Changliang,Su, Hong-Yi,Xu, Zhen-Peng,et al. Optimal GHZ Paradox for Three Qubits[J]. SCIENTIFIC REPORTS,2015,5.
APA	Ren, Changliang,Su, Hong-Yi,Xu, Zhen-Peng,Wu, Chunfeng,&Chen, Jing-Ling.(2015).Optimal GHZ Paradox for Three Qubits.SCIENTIFIC REPORTS,5.
MLA	Ren, Changliang,et al."Optimal GHZ Paradox for Three Qubits".SCIENTIFIC REPORTS 5(2015).