Entanglement Witnesses Based on Symmetric Informationally Complete Measurements

被引：12
|
作者：
Li, Tao [1 ]
Lai, Le-Min [2 ]
Liang, Deng-Feng [1 ]
Fei, Shao-Ming [2 ,3 ]
Wang, Zhi-Xi [2 ]
机构：
[1] Beijing Technol & Business Univ, Sch Math & Stat, Beijing 100048, 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：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2020年 / 59卷 / 11期
基金：
北京市自然科学基金;
关键词：
Entanglement witness; SIC-POVM; SEPARABILITY; CRITERION; STATES;
D O I：
10.1007/s10773-020-04615-w
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study entanglement witness and present a construction of entanglement witnesses in terms of the symmetric informationally complete measurements (SIC-POVM). The capability of our witness is shown by some examples and it can be found this witness detects more entanglement than previous separability method given also by SIC-POVM. What's more, comparing with the dimension dependence of SIC-POVM, we also give the entanglement witnesses can be always constructed from general symmetric informationally complete measurements (GSIC-POVM).
引用
收藏
页码：3549 / 3557
页数：9
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