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
收藏
页码：2885 / 2893
页数：9
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