Reversible optical–microwave quantum conversion assisted by optomechanical dynamically dark modes

We propose a dynamically dark-mode (DDM) scheme to realize the reversible quantum conversion between microwave and optical photons in an electro-optomechanical (EOM) model. It is shown that two DDMs appear at certain times during dynamical evolution of EOM demonstrated can induce kinds highly efficient fields, conditional (CQC) entanglement-assisted (EAQC). The CQC happens condition vanishing initial-state mean value one fields only depends on coupling ratio system under consideration. EAQC occurs presence entanglement fields. found be manipulated by engineering ratio. indicated it possible entanglement-enhanced (or suppressed) through controlling phase parameter. Our work highlights power generating DDMs.