Quantum Interference‐Enhanced Ground State Cooling in Dual‐Cavity Optomechanical System

Abstract A scheme is proposed to achieve ground state cooling in a dual‐cavity optomechanical system. By solving the optimal coupling conditions in both red‐detuned and blue‐detuned regimes, it is demonstrated that ground state cooling is achievable over a wide range of parameters. The quantum interference effect induced by the cavity‐cavity coupling plays a crucial role in suppressing the heating process and enhancing the cooling process, enabling ground state cooling of the mechanical resonator even in the blue‐detuned regime. Furthermore, the SSH model is studied with next‐nearest‐neighbor (NNN) coupling and it is found that the NNN coupling not only induces the edge state but also enables ground state cooling of the mechanical resonator. The scheme provides new insights into the connection between optomechanical systems and topological models, paving the way for further exploration of their synergistic effects.