Entanglement measures based on observable correlations

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	Entanglement measures based on observable correlations
	Luo, Shunlong
	2008-06-01
发表期刊	THEORETICAL AND MATHEMATICAL PHYSICS
ISSN	0040-5779
卷号	155 期号:3 页码:896-904
摘要	By regarding quantum states as communication channels and using observable correlations quantitatively expressed by mutual information, we introduce a hierarchy of entanglement measures that includes the entanglement of formation as a particular instance. We compare the maximal and minimal measures and indicate the conceptual advantages of the minimal measure over the entanglement of formation. We reveal a curious feature of the entanglement of formation by showing that it can exceed the quantum mutual information, which is usually regarded as a theoretical measure of total correlations. This places the entanglement of formation in a broader scenario, highlights its peculiarity in relation to pure-state ensembles, and introduces a competing definition with intrinsic informational significance.
关键词	entanglement mutual information observable correlations entanglement of formation
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary ; Physics, Mathematical
WOS记录号	WOS:000257145800005
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/5384
专题	应用数学研究所
通讯作者	Luo, Shunlong
作者单位	Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Luo, Shunlong. Entanglement measures based on observable correlations[J]. THEORETICAL AND MATHEMATICAL PHYSICS,2008,155(3):896-904.
APA	Luo, Shunlong.(2008).Entanglement measures based on observable correlations.THEORETICAL AND MATHEMATICAL PHYSICS,155(3),896-904.
MLA	Luo, Shunlong."Entanglement measures based on observable correlations".THEORETICAL AND MATHEMATICAL PHYSICS 155.3(2008):896-904.