Output enhanced quantum correlations using a coherence-controlled atomic reservoir

Abstract We show that the output steady-state quantum correlations are prominently enhanced via dissipative atomic reservoir by employing a two-level atomic system driven by a strong laser field inside a two-mode cavity. It is found that the output two-mode quantum entanglement is obviously enhanced in comparison to that of the intracavity fields without adiabatic elimination atomic variables. On the other hand, the output asymmetrical one-way Einstein–Podolsky–Rosen steering could be obtained with unbalanced coupling strength. Physically, the enhanced quantum correlations can be essentially attributed to the coherence-controlled effective two-mode squeezed thermal state.