Total versus quantum correlations in a two-mode Gaussian state

Jamal El Qars

Figure 1. A nondegenerate three-level laser in a cascade configuration [32]. The transition ∣a⟩ → ∣b⟩(∣b⟩ → ∣c⟩) of frequency ω1(ω2) and spontaneous emission decay rate γab(γbc) is assumed to be dipole-allowed, while, ∣a⟩ → ∣c⟩ is dipole forbidden [29].