量子态制备过程中压缩效应的渐近特性

The Tendency Characteristic of Squeezing Effects in the Process of the Preparation of Quantum States

奇偶相干态在制备过程中压缩效应的渐近特性是,奇相干态的两个正交分量不产生压缩,偶相干态的两个正交分量均产生压缩,随着激光作用次数的增加,压缩区间的θ参数具有相同的取值区间,而|α|参数的取值区间却随激光作用次数的增加而扩大.

The tendency characteristic of squeezing effects of even and odd states as follows, the two orthogonal components of the odd coherent states do not produce squeezing effects in the process of preparation, but those of the even coherent states do. With the times of laser action increasing,the squeezing region of the parameter θ remains constant,but the parameter ｜ α｜ will expand.