Figure 6
From: Parity-time symmetry in coherent asymmetric double quantum wells

(a) Real part χR and (b) imaginary part χI of the susceptibility as a function of probe detuning Δp for different pump Rabi frequency, Ωd = 0.8Γ (red dotted line), Ωd = Γ (blue dashed line), and Ωd = 1.2Γ (black solid line). The parameters are Ωc = Γ and Δc = Δd = 0. The other parameters are the same as in Fig. 3.