Detection of High-Dimensional Genuine Multipartite Entanglement of Mixed States

被引：191
作者：
Huber, Marcus [1 ,2 ]
Mintert, Florian [1 ,2 ]
Gabriel, Andreas [1 ]
Hiesmayr, Beatrix C. [1 ]
机构：
[1] Univ Vienna, Fac Phys, A-1090 Vienna, Austria
[2] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 21期
关键词：
SEPARABILITY;
D O I：
10.1103/PhysRevLett.104.210501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We derive a general framework to identify genuinely multipartite entangled mixed quantum states in arbitrary-dimensional systems and show in exemplary cases that the constructed criteria are stronger than those previously known. Our criteria are simple functions of the given quantum state and detect genuine multipartite entanglement that had not been identified so far. They are experimentally accessible without quantum state tomography and are easily computable as no optimization or eigenvalue evaluation is needed.
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