Some studies of the interaction between two two-level atoms and SU(1, 1) quantum systems
El-Shahat T M, Ismail M Kh
(color online) Contour plots of phenomena behavior in the resonance case. Panels (a) and (c) for Δ/λ = 0, p = 1; Panels (b) and (d) for Δ/λ = 0, p = 3.