Figure 4. Comparison of the phase diagrams of 
, 
among the baseline, type-I, and type-II scenarios.
(a)(b) show the variance of 
and 
as 
gradually increases, fixing 
(c)(d) show the variance of 
and 
as 
gradually increases, fixing 
. The error bar is not shown since the standard deviation is much smaller (less than 10−1 of the mean value). The vertical colored dashed lines illustrate the theoretical prediction of the threshold of 
.