Separability Criteria and Lower Bound for Concurrence Based on Hermitian Maps

被引:1
|
作者
Guo, Hao [1 ]
Qi, Fei [2 ,3 ]
Lei, Qiang [4 ]
机构
[1] Soochow Univ, Robot & Microsyst Ctr, Suzhou 215021, Peoples R China
[2] Soochow Univ, Sch Mech & Elect Engn, Suzhou 215021, Peoples R China
[3] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215021, Peoples R China
[4] Harbin Inst Technol, Dept Math, Harbin 150001, Peoples R China
基金
中国博士后科学基金;
关键词
Quantum states; Entanglement; Concurrence; ENTANGLEMENT;
D O I
10.1007/s10773-015-2540-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, a class of matrix maps be preserving Hermitian are constructed. Based on these maps, for pure quantum states on any finite dimensional bipartite systems, we present a necessary and sufficient condition for separability, moreover, a new lower bound of concurrence is obtained.
引用
收藏
页码:3018 / 3025
页数:8
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