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题名: Criterion for testing multiparticle negative-partial-transpose entanglement
作者: Zeng, B ;  Zhou, DL ;  Zhang, P ;  Xu, Z ;  You, L
刊名: PHYSICAL REVIEW A
出版日期: 2003
卷号: 68, 期号:4, 页码:-
关键词: CONTINUOUS VARIABLE SYSTEMS ;  SEPARABILITY CRITERION ;  MIXED STATES ;  SCHMIDT DECOMPOSITION
学科分类: Physics
通讯作者: Zeng, B , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
部门归属: Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA
英文摘要: We revisit the criterion of multiparticle entanglement based on the overlaps of a given quantum state p with maximally entangled states. For a system of in particles, each with N distinct states, we prove that p is m-particle negative partial transpose entangled, if there exists a maximally entangled state \MES), such that (MES\rho\MES) > 1/N. While this sufficiency condition is weaker than the Peres-Horodecki criterion in all cases, it applies to multi-particle systems, and becomes especially useful when the number of particles (m) is large. We also consider the converse of this criterion and illustrate its invalidity with counter examples.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000187004700035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13216
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zeng, B,Zhou, DL,Zhang, P,et al. Criterion for testing multiparticle negative-partial-transpose entanglement[J]. PHYSICAL REVIEW A,2003,68(4):-.
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