LAUSR

A scheme is proposed to investigate the influence of single-photon catalysis operation on the dynamics of optomechanical system. The nonclassicalities of the catalyzed states are studied by analyzing mean photon(phonon) number, photon(phonon) number distribution, Mandel Q parameter, second-order correlation functions and Wigner function. According to the fidelity between the states before and after operation, it is found that the quantum properties of optomechanical states are significantly affected via the optimum catalysis. The optomechanical entanglement can be enhanced in the large catalysis parameter region with the small-amplitude coherent state. In particular, the Wigner function of the mechanical state can be represented by superposition of Wigner function of displaced number-like states in which the weights depend on the value of catalysis parameter. The interesting results show that tuning the catalysis parameter can manipulate efficiently the nonclassical properties of cavity mode and mechanical mode. This work might provide a new pathway to control the nonclassicalities of the optomechanical states, especially the nonclassical mechanical states.