Measure and detection of genuine multipartite entanglement for tripartite systems

被引：15
|
作者：
Li, Ming [1 ]
Jia, Lingxia [1 ]
Wang, Jing [1 ]
Shen, Shuqian [1 ]
Fei, Shao-Ming [2 ,3 ]
机构：
[1] China Univ Petr, Coll Sci, Qingdao 266580, Peoples R China
[2] Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R China
[3] Max Planck Inst Math Sci, D-04103 Leipzig, Germany
来源：
PHYSICAL REVIEW A | 2017年 / 96卷 / 05期
关键词：
QUANTUM ENTANGLEMENT; BLOCH REPRESENTATION; DENSITY-MATRICES; SECRET; COMPUTATION;
D O I：
10.1103/PhysRevA.96.052314
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
It is a computationally hard task to certify genuine multipartite entanglement (GME). We investigate the relation between the norms of the correlation vectors and the detection of GME for tripartite quantum systems. A sufficient condition for GME and an effective lower bound for the GME concurrence are derived. Several examples are considered to show the effectiveness of the criterion and the lower bound of GME concurrence.
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页数：5
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