【摘要】 利用Ｒａｍｓｅｙ场以及在大失谐情况下的二能级原子与光场的色散作用可以制备光场的Ｅｉｎｓｔｅｉｎ－Ｐｏｄｏｌｓｋｙ－Ｒｏｓｅｎ（ＥＰＲ）态和多光场的纠缠态．得出这些量子态之间的距离最大并且具有最大纠缠度和最大冯诺依曼熵．最后指出这些态在量子信息光学中的应用更多还原

【Abstract】 The Einstein Podolsky Rosen states and the entangled states of the cavity field are prepared through the Ramsey Cavity and the dispersive interactions between two level atom and the cavity field in large enough detunings conditions. We conclude that the distance among these quantum states reach maximum value, and even they have the maximum entangled degree and Von.Neumann entropy. Finally ,we have pointed out applications of these states to quantum information optics.更多还原