Classifying entanglement in the superposition of Greenberger-Horne-Zeilinger and W states

doi:10.1103/PhysRevA.92.042318

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	Classifying entanglement in the superposition of Greenberger-Horne-Zeilinger and W states
	Wang, Xuan; Shi, Xian
	2015-10-14
发表期刊	PHYSICAL REVIEW A
ISSN	1050-2947
卷号	92 期号:4 页码:4
摘要	In this paper, we study the entanglement classification of the two-dimensional subspace spanned by n-qubit Greenberger-Horne-Zeilinger (GHZ) andW states under stochastic local operations and classical communication (SLOCC). We show that for n >= 4 such a system can have infinite SLOCC inequivalent classes. Specifically, two states, vertical bar GHZ >(n) + x vertical bar W >(n) and vertical bar GHZ >(n) + y vertical bar W >(n), from the subspace spanned by n-qubit vertical bar W >(n) and vertical bar GHZ >(n) are SLOCC equivalent if and only if (x/y)(n) = 1.
DOI	10.1103/PhysRevA.92.042318
语种	英语
资助项目	National Natural Science Foundation of China[10771208] ; Science Fund for Creative Research Groups[10721101] ; National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences[Y029152K51]
WOS研究方向	Optics ; Physics
WOS类目	Optics ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000362890000005
出版者	AMER PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/21022
专题	中国科学院数学与系统科学研究院
通讯作者	Wang, Xuan
作者单位	Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuan,Shi, Xian. Classifying entanglement in the superposition of Greenberger-Horne-Zeilinger and W states[J]. PHYSICAL REVIEW A,2015,92(4):4.
APA	Wang, Xuan,&Shi, Xian.(2015).Classifying entanglement in the superposition of Greenberger-Horne-Zeilinger and W states.PHYSICAL REVIEW A,92(4),4.
MLA	Wang, Xuan,et al."Classifying entanglement in the superposition of Greenberger-Horne-Zeilinger and W states".PHYSICAL REVIEW A 92.4(2015):4.