Entanglement in a four-wave mixing process

Zhan Zheng; Hailong Wang; Bing Cheng; Jietai Jing

doi:10.1364/OL.42.002754

Entanglement in a four-wave mixing process

Zhan Zheng
, Hailong Wang
, Bing Cheng
, Jietai Jing^*

^*Corresponding author for this work

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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 (Stokes, 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.

Original language	English
Pages (from-to)	2754-5727
Number of pages	2974
Journal	Optics Letters
Volume	42
Issue number	14
DOIs	https://doi.org/10.1364/OL.42.002754
State	Published - 15 Jul 2017

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abstract = "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 (Stokes, 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.",

author = "Zhan Zheng and Hailong Wang and Bing Cheng and Jietai Jing",

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AU - Cheng, Bing

AU - Jing, Jietai

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N2 - 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 (Stokes, 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.

AB - 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 (Stokes, 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.

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Entanglement in a four-wave mixing process

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