Optomechanically induced tunable ideal nonreciprocity in optomechanical system with Coulomb interaction.

Here, we propose a multimode optomechanical system for achieving an adjustable quantum coherence effect (the ideal optical nonreciprocity response), where two linearly coupled cavity modes and a charged mechanical mode are coupled to another charged mechanical mode. Two strong pump laser fields (weak probe laser fields) are used to drive two cavity modes, respectively. When the system works under certain conditions, we can obtain the ideal optical nonreciprocity response. The ideal optical nonreciprocity response direction can be controlled by the phase differences. This optical nonreciprocity response results from the constructive or destruction interference between different transmission paths in this multimode optomechanical system. We also show that the optical nonreciprocity response can be adjusted by the cavity decay rate, Coulomb coupling strength, intercavity tunneling strength. [ABSTRACT FROM AUTHOR]