Noise-induced quantum correlations via quantum feedback control

被引：7

作者：

Song, Jie ^{[1
]}

Xia, Yan ^{[2
,3
]}

Sun, Xiu-Dong ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

[2] Fuzhou Univ, Dept Phys, Fuzhou 350002, Peoples R China

[3] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2012年 / 29卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ENTANGLEMENT; STATE; SYSTEMS; MODES;

D O I：

10.1364/JOSAB.29.000268

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study a physical system for creation of quantum correlations by quantum feedback control. The system is composed of two three-level atoms, each of which interacts with one of two coupled cavities. By appropriately choosing the feedback strength, we show that an arbitrary initial state can be deterministically driven to a steady-state that has a nonzero quantum discord or entanglement. It is also found that the effect of atomic spontaneous emission on quantum correlations is suppressed efficiently by increasing the frequency detuning. (C) 2012 Optical Society of America

引用

页码：268 / 273

页数：6