Optomechanical Quantum Transduction Control Protocol

Quantum transducer technologies that convert between static, microwave qubits and flying, optical qubits are the back-bone infrastructure technology and enabler for the Quantum Internet. Among existing platforms, optomechanical transduction is a mature technology with demonstrated high conversion efficiency between microwave and optical photons. Current demonstrations are based on cavities with constant driving fields to pump photons and amplify the optomechanical coupling strength. Given the advances in pulsed control for superconducting circuits, we proposed pulsed driving fields to enhance the conversion efficiency. We present a theoretical framework for time-dependent control of the driving lasers based on the input-output formalism of quantum optics, and derive an analytical formulation for the linear time-varying equation of motion in the strongly-dissipative limit. Using both analytics and numerics, we show how pulsed control schemes can enhance the conversion efficiency, paving the way for more advanced optomechanical control protocols.