Generation of Two-Mode Squeezing and Continuous Variable Entanglement in a Nonlinear Coupler Inside a Optical Cavity
利用置于光腔中的非线性耦合器制备压缩和连续变量纠缠光

The generation of two-mode squeezed and entangled light in a nonlinear coupler inside an optical cavity was studied.The master equation of the two-mode field was solved by the method of characteristic function.It shows that the state of the two-mode field is a two-mode Gaussian one,and under some conditions,the two-mode cavity field exhibits stable two-mode squeezing and continuous variable entanglement.The degree of the squeezing and entanglement is dependent on the damping rate of the cavity field and the coupling constants between the two modes.