Out-of-time-ordered correlation in the anisotropic Dicke model
Jihan Hu(胡继晗),Shaolong Wan(完绍龙)
Figure 2. Density plot of $\bar{{ \mathcal R }}$ as a function of g1,2. The Dicke model, i.e. in which g1 = g2, is indicated by a dot-dashed line. Normal phase (NP) and superradiant phase (SP) are separated by the quantum phase transition (QPT) line, the dashed line.