中文摘要：

利用置于光腔中的非线性耦合器制备了压缩和连续变量纠缠光.通过特征函数方法解析求解了双模腔场满足的主方程.分析发现：在一定的条件下,此系统能产生稳定的双模压缩和连续变量纠缠光,且压缩和纠缠的强度与系统的耦合参量及腔场损耗系数密切相关.

英文摘要：

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.