Photon-phonon squeezing and entanglement in a cavity optomechanical system with a flying atom

摘要

We study the quadrature squeezing and entanglement in a cavity optomechanical system (COMS).In our model,a flying atom sequentially passes through and interacts with the COMS and a Ramsey pulse zone,and subsequently the atomic state is detected.In this way,the photon-phonon squeezing and entanglement can be generated.The dynamic evolution of the squeezing and entanglement in the presence of losses are examined by using the master equation method.