Direct measure of genuine tripartite entanglement independent from bipartite constructions

被引：4
作者：
Ziane, Mustapha [1 ]
El Baz, Morad [1 ]
机构：
[1] Univ Mohammed 5, Fac Sci, Dept Phys, Equipe Sci Mat & Rayonnement, Av Ibn Battouta,BP 1014, Rabat, Morocco
来源：
QUANTUM INFORMATION PROCESSING | 2018年 / 17卷 / 08期
关键词：
Negativity of the Wigner function; Genuine entanglement; Non-classicality; GHZ states; W states; Coherent states; WIGNER-FUNCTION; QUANTUM; STATE; REPRESENTATION; TOMOGRAPHY; NEGATIVITY; DYNAMICS; OPERATOR;
D O I：
10.1007/s11128-018-1957-z
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new and direct measure (without bipartite measures) of genuine entanglement in tripartite systems based on the volume of the negative part of the Wigner function is proposed. We analyze comparatively this quantity and the different types of entanglement present in two major classes (GHZ and W classes) formed in the coherent state basis.
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页数：11
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