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.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Jun Xin, Jian Qi, and Jietai Jing
Opt. Lett. 42(2) 366-369 (2017)
Hailong Wang, Zhan Zheng, Yaxian Wang, and Jietai Jing
Opt. Express 24(20) 23459-23470 (2016)
Tianxiang Wei, Shuchao Lv, and Jietai Jing
J. Opt. Soc. Am. B 35(11) 2806-2814 (2018)