Characterization of the pairwise correlations in different quantum networks consisting of four-wave mixers and beamsplitters

Qi Jian¹, Xin Jun¹, Wang Hai-Long^{1, †}, Jing Jie-Tai^{1, 2, ‡}

(color online) The contour plot of Eqs. (26) and (30). (a) The contour plot of . (b) The contour plot of .