Figure 2
Eigenenergy spectrum of the system’s Hamiltonian with resonant detuning. Eigenenergies of the Hamiltonian (2) as a function of the probe-field detuning Δ p at different values of the tunneling coupling strength: (a) Te1 = Te2 = Γ4/5, (b) Te1 = Γ4/2, Te2 = Γ4, (c) Te1 = Γ4, Te2 = 5 Γ4, and (d) Te1 = Γ4/2, Te2 = 10−1 Γ4, where Γ4 = 10 μeV. Other parameters are chosen as Ω p  = 10−2 Γ4 and ω42 = ω43 = 0. Here D i (i = 1, 2, 3, 4) labels the degenerate points in the eigenenergy diagrams and the red dashed loops are used to highlight the anticrossing points.
