Generation of tripartite Einstein–Podolsky–Rosen steering by cascaded nonlinear process
Liu Yu1, Liang Su-Ling1, Jin Guang-Ri1, Yu You-Bin1, †, Lan Jian-Yu2, He Xiao-Bin2, ‡, Guo Kang-Xian3
       

The values of S0 (red dashed line), S1 (black dot-dashed line), S2 (blue thin line), and Stot (green thick line) versus / the the normalized analysis frequency Ω with γ0 = 0.001, γ1 = γ2 = 0.03, κ0 = 0.05, κ1 = 1.5κ0, and ε = 0.06κ0, respectively.