Figure 8
From: A novel framework of classical and quantum prisoner’s dilemma games on coupled networks

The stationary fraction of all cooperators, including C on G1 and C, Q on G2, on the whole two-layer coupled network as a function of α under different γ, given that the temptation of defect b takes different values.
(a–f) correspond to results of b being 1.0, 1.2, 1.4, 1.6, 1.8, 2.0, respectively. Each data presented is the average of 100 realizations.