Geometric global quantum discord of two-qubit states

被引：0
|
作者：
肖运龙 [1 ,2 ]
李陶 [3 ]
费少明 [2 ,3 ]
景乃桓 [1 ,4 ]
王志玺 [3 ]
李先清 [2 ]
机构：
[1] School of Mathematical Sciences South China University of Technology
[2] Max Planck Institute for Mathematics in the Sciences
[3] School of Mathematical Sciences Capital Normal University
[4] Department of Mathematics North Carolina State University
来源：
Chinese Physics B | 2016年 / 03期
基金：
中国国家自然科学基金;
关键词：
geometric global quantum discord; two-qubit state;
D O I：
暂无
中图分类号：
O413 [量子论];
学科分类号：
070201 ;
摘要：
We consider the geometric global quantum discord(GGQD) of two-qubit systems. By analyzing the symmetry of geometric global quantum discord we give an approach for deriving analytical formulae of the extremum problem which lies at the core of computing the GGQD for arbitrary two-qubit states. Furthermore, formulae of GGQD of arbitrary two-qubit states and some concrete examples are presented.
引用
收藏
页码：64 / 68
页数：5
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