Nonclassical Correlations in a Three-Mode Continuous-Variable System

被引：0
|
作者：
F. Siyouri
M. Ziane
M. El Baz
Y. Hassouni
机构：
[1] Université Mohammed V - Agdal,Laboratoire de Physique Théorique, Département de Physique Faculté des Sciences
来源：
Journal of Russian Laser Research | 2017年 / 38卷
关键词：
quantum discord; superquantum discord; entanglement; coherent states; tripartite GHZ states; measurement strength;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We investigate a standard measure of quantum discord for tripartite coherent states of the Greenberger–Horne–Zeilinger (GHZ) type. Furthermore, we check the monotonicity of a superquantum discord according to weak quantum measurements. We accomplish our study by manipulating the amount of quantum information lost during the perturbation of the quantum system and controlling the measurement strength. In addition, we calculate the entanglement of the system under study. Finally we compare the behavior of the three correlations.
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页码：27 / 36
页数：9
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