广义Kerr介质奇偶相干态中相位算符的压缩性质  

Squeezing Properties of Measured Phase Operators in Generalized KerrEven and Odd Coherent States

作　　者：张少武[1] 王秀章[1] 

机构地区：[1]湖北师范学院物理系,湖北黄石435002

出　　处：《量子光学学报》2002年第4期177-184,共8页Journal of Quantum Optics

摘　　要：利用S.M.Barbett和D.T.Pegg提出的测量相位算符,研究了存在广义Kerr介质时,奇偶相干态中测量相位的二阶和高阶压缩性质。着重讨论了广义Kerr介质的非线性阶数m对奇偶相干态中测量相位压缩的影响。结果表明:在广义Kerr奇偶相干态中,测量相位算符存在间歇性的偶数阶CS类压缩和双偶数阶CN类压缩,压缩的深度与非线性介质的阶数m、｜α｜2及δ有关。The properties of the two-order and high-order squeezing of phase in generalized Kerr even and odd coherent states have been studied via the measured phase operators introduced by S. M. Barnett and D. T. Pegg. The influences of nonlinear order m of generalized Kerr-medium on squeezing of measured phase operarors have been discussed emphatically. It is shown that the measured phase operator has periodic even-order squeezing in the CS type and di-even-order squeezing in CN type ,in all even and odd coherent states, and the degree of squeezing is relevant to m, |α|2 and δ.

关 键 词：广义Kerr介质 压缩性质 奇偶相干态 测量相位算符 高阶压缩 量子光学 

分 类 号：O431.2[机械工程—光学工程]