The transmission probabilities |T_ij|² (i,j = 1,2) as a function of the ω/2π. (i) The red dashed lines show the ϕ = π/2, (ii) green solid lines show the ϕ = −π/2. The values of the other parameters are set as κ₀₁ = π × 10⁶ Hz, κ₀₂ = 2 π × 10⁶ Hz, κ_ex1 = κ_ex2 = 4π × 10⁶ Hz, γ_m3 = γ_m4 = 4π × 10⁶ Hz, G₁ = 4π × 10⁶ Hz, G₂ = 6π × 10⁶ Hz, θ = π/3, J = (2κ₁ κ₂)^1/2, V = 0.1γ_m1.