content_image/328090.jpg
<img src='content_image/328090.jpg'>

mixtures. Using Eq.(1.6) we plot the τ (correlation vector of CSS)-dependence of t (correla- tion vector of the entangled state) with varying the parameter x when min( µ Γ $_{−}$, ν Γ $_{−}$) = ν Γ − = 0. Since similar behavior arises when min( µ Γ $_{−}$, ν Γ $_{−}$) = µ Γ − = 0, we have not included this case in Fig. 7. Four figures in Fig. 7 correspond to, respectively, r = s = 0 . 3 (Fig. 7a), 

