Entanglement and nonlocality in a coupled-cavity system

被引：2

作者：

Zhang, Zheyong ^{[1
,2
,3
]}

Ding, Jianping ^{[1
,2
,3
]}

Wang, Hui-Tian ^{[1
,2
,3
,4
,5
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu, Peoples R China

[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[4] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China

[5] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

来源：

PHOTONICS RESEARCH | 2017年 / 5卷 / 03期

基金：

中国国家自然科学基金;

关键词：

HIDDEN-VARIABLE THEORIES; BELL INEQUALITIES; VIOLATION;

D O I：

10.1364/PRJ.5.000224

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

No instrument is able to measure directly the quantum entanglement of a system. However, both theory and experiment, following the well-known Bell inequality, reveal the existence of the entanglement phenomenon in quantum mechanics. To examine the characterization of quantum entanglement, here we present a two-site cavity system, in which each cavity contains a Lambda-type three-level atom and the two sites are identical and coupled with each other. We investigate and calculate the bipartite entanglement entropy of the system for the ground states. For photons of different types, corresponding to the two ground states of the atom, we investigate the correlations and violation of the Bell inequality. (C) 2017 Chinese Laser Press

引用

页码：224 / 232

页数：9

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