Entanglement in a four-wave mixing process

被引：8

作者：

Zheng, Zhan ^{[1
]}

Wang, Hailong ^{[2
]}

Cheng, Bing ^{[1
]}

Jing, Jietai ^{[2
,3
]}

机构：

[1] Zhejiang Univ Technol, Collaborat Innovat Ctr Informat Technol Biol & Me, Coll Sci, COOR, Hangzhou 310023, Zhejiang, Peoples R China

[2] East China Normal Univ, Sch Phys & Mat Sci, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

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

来源：

OPTICS LETTERS | 2017年 / 42卷 / 14期

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

Quantum electronics - Four wave mixing - Quantum entanglement;

D O I：

10.1364/OL.42.002754

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate different kinds of entanglement in a four-wave mixing process with a degenerate pump. After analyses on means and quantum fluctuations of the three output beams (tokes, anti-Stokes, and pump), we verify the existence of genuine tripartite entanglement, and quantify bipartite, two-mode, as well as tripartite entanglement with the covariance matrix. We find out that the input pump power and the nonlinear coupling strength are the physical origins to enhance entanglement at a given photon loss. (C) 2017 Optical Society of America

引用

页码：2754 / 2757

页数：4

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