Bounds on multipartite concurrence and tangle

被引：0
|
作者：
Jing Wang
Ming Li
Hongfang Li
Shao-Ming Fei
Xianqing Li-Jost
机构：
[1] China University of Petroleum,College of the Science
[2] Capital Normal University,Department of Mathematics
[3] Max-Planck-Institute for Mathematics in the Sciences,undefined
来源：
Quantum Information Processing | 2016年 / 15卷
关键词：
Entanglement; Concurrence; Genuine multipartite entanglement; Separability; Tangle;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We present an analytical lower bound of multipartite concurrence based on the generalized Bloch representations of density matrices. It is shown that the lower bound can be used as an effective entanglement witness of genuine multipartite entanglement. Tight lower and upper bounds for multipartite tangles are also derived. Since the lower bounds depend on just part of the correlation tensors, the result is experimentally feasible.
引用
收藏
页码：4211 / 4218
页数：7
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