Detecting consistency of overlapping quantum marginals by separability

ISCAS OpenIR

	Detecting consistency of overlapping quantum marginals by separability
	Chen, JX; Ji, ZF; Yu, NK; Zeng, B
	2016
发表期刊	PHYSICAL REVIEW A
ISSN	2469-9926
卷号	93 期号:3
摘要	The quantum marginal problem asks whether a set of given density matrices are consistent, i.e., whether they can be the reduced density matrices of a global quantum state. Not many nontrivial analytic necessary (or sufficient) conditions are known for the problem in general. We propose a method to detect consistency of overlapping quantum marginals by considering the separability of some derived states. Our method works well for the k-symmetric extension problem in general and for the general overlapping marginal problems in some cases. Our work is, in some sense, the converse to the well-known k-symmetric extension criterion for separability.; The quantum marginal problem asks whether a set of given density matrices are consistent, i.e., whether they can be the reduced density matrices of a global quantum state. Not many nontrivial analytic necessary (or sufficient) conditions are known for the problem in general. We propose a method to detect consistency of overlapping quantum marginals by considering the separability of some derived states. Our method works well for the k-symmetric extension problem in general and for the general overlapping marginal problems in some cases. Our work is, in some sense, the converse to the well-known k-symmetric extension criterion for separability.
收录类别	SCI
部门归属	Univ Maryland, Joint Ctr Quantum Informat & Comp Sci, College Pk, MD 20742 USA. Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada. Chinese Acad Sci, Inst Software, State Key Lab Comp Sci, Beijing, Peoples R China. Univ Guelph, Dept Math & Stat, Guelph, ON N1G 2W1, Canada. Canadian Inst Adv Res, Toronto, ON, Canada.
语种	英语
WOS记录号	WOS:000371390900001
引用统计
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/17342
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Chen, JX,Ji, ZF,Yu, NK,et al. Detecting consistency of overlapping quantum marginals by separability[J]. PHYSICAL REVIEW A,2016,93(3).
APA	Chen, JX,Ji, ZF,Yu, NK,&Zeng, B.(2016).Detecting consistency of overlapping quantum marginals by separability.PHYSICAL REVIEW A,93(3).
MLA	Chen, JX,et al."Detecting consistency of overlapping quantum marginals by separability".PHYSICAL REVIEW A 93.3(2016).