Enhancing the quantum entanglement and EPR steering of a coupled optomechanical system with a squeezed vacuum field

被引：5

作者：

Wu, Shao-Xiong ^{[1
,2
,3
]}

Bai, Cheng-Hua

Li, Gang ^{[1
,2
,4
]}

Yu, Chang-shui ^{[5
]}

Zhang, Tiancai ^{[1
,2
,4
]}

机构：

[1] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China

[2] Shanxi Univ, Inst Optoelect, Taiyuan 030006, Peoples R China

[3] North Univ China, Sch Semicond & Phys, Taiyuan 030051, Peoples R China

[4] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

[5] Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2023年 / 40卷 / 11期

基金：

中国国家自然科学基金;

关键词：

PODOLSKY-ROSEN PARADOX;

D O I：

10.1364/JOSAB.495520

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum entanglement and Einstein-Podolsky-Rosen (EPR) steering are valuable resources in quantum informa-tion processing. How to enhance the quantum entanglement and EPR steering of coupled optomechanical systems with a weak squeezed vacuum field is studied when the displacement of detuning induced by the mechanical mode is considered. Compared with the condition that the system interacts with a vacuum environment, the quantum entanglement and EPR steering are stronger when the squeezed vacuum field is applied. A squeezed vacuum field with a large degree is not beneficial to enhance the quantum entanglement and EPR steering. Rather than the squeezing parameter of the squeezed vacuum field, the reference phase plays a vital role in this model. (c) 2023 Optica Publishing Group

引用

页码：2885 / 2893

页数：9