Publication

Abstract : Quantum transduction is an important area of quantum information processing and looks at the conversion of quantum signals across disparate physical systems. In this review paper, the underlying principles of optoelectromechanical transduction as well as specific ways to realise it are discussed. Optical-to-microwave transduction has been realised using atomic ensembles, optical whispering gallery mode microresonators, collective magnetostatic spin excitations, organic dye molecules in a phononic waveguide and optoelectromechanic approach using piezoelectricity or electrostatic nanomembranes. While approaches such as those using Rydberg atomic ensembles, rare earth ensembles and magnons look at mediation between classical fields, it is primarily with optoelectromechanical methods that we have been able to harness the quantum transduction regime, with recent experiments having shown photon conversions to upto 48%.