Figure 3
From: Controllable microwave three-wave mixing via a single three-level superconducting quantum circuit
(a) Three transition frequency ωij (i > j) versus the reduced magnetic flux f is plotted. The crossing points for the curves of ω21 and ω32 correspond to ω21 = ω32. (b) The amplitude 
of the susceptibility in Eq. (20) versus f is plotted with, e.g., Γ21/2π = 50 MHz and Γ31/2π = 30 MHz. The same SFQC parameters as in Fig. 2 are used in both panels.
