title: Entangling cavity optomechanical systems via a flying atom.
abstract: We propose a novel scheme to generate the entanglement between two cavity optomechanical systems (COMSs) via a flying two-level atom. We derive the analytical expressions for the generated entangled states. We find that there exist two processes for generating entanglement: one is the entanglement transfer between the two phonon-modes, and the other is the entanglement swapping-like process among the two photon-modes and the two phonon-modes. We analyze these two kinds of phenomena, respectively, by adjusting the distance between the two COMSs. Then we discuss the verification of the generated entangled states of the two COMSs, and analyze the decoherence of the generated entangled states. Finally, we discuss the experimental feasibility of our proposal.
authors.forename: Jun-Hao
authors.initials: JH
authors.lastname: Liu
authors.forename: Yu-Bao
authors.initials: YB
authors.lastname: Zhang
authors.forename: Ya-Fei
authors.initials: YF
authors.lastname: Yu
authors.forename: Zhi-Ming
authors.initials: ZM
authors.lastname: Zhang