期刊论文

中文

光电子·激光

1005-0086

2001

12

6

635-640

10.3321/j.issn:1005-0086.2001.06.024

国家自然科学基金资助项目（60078016）； 湖北省科学研究计划资助项目（99A093）；

本校为其他机构

利用S.M.Barnett和D.T.Pegg提出的测量相位算符,讨论了Kerr偶奇相干态中相位的二阶和高阶压缩性质.结果表明,在Kerr偶奇相干态中,测量相位算符cosM￠不仅存在周期性的k阶cs类压缩,而且当k/2为偶数时,cosM￠还存在k阶cN类压缩.压缩程度与|α|2有关,对于较小的|α|2,在Kerr偶奇相干态中cosM￠的压缩情况相似;但当|α|2较小时,在Kerr奇相干态中cosM￠的压缩要浅,甚至不出现压缩效应.

WT5”BZ]:The properties of the two order and higher order squeezing of phase in Kerr even and odd coherent states have been discussed via the measured phase operator introduced by S.M.Barnett and D.T.Pegg.The results exhibit that the measured phase operator cos M has not only periodic k order squeezing in cs type in even and odd coherent states but the k order squeezing in the type of cN when k is even.They also show that the degree of squeezing is relevant with ｜α｜ 2.When ｜α｜ 2 is comparatively big,the squeezing in Kerr even coherent s...