二项式光场中运动的Ξ型三能级原子偶极振幅平方压缩

J4 ›› 2009, Vol. 26 ›› Issue (3): 327-332.

二项式光场中运动的Ξ型三能级原子偶极振幅平方压缩

臧学平^1,2 杨名²

1. 池州学院物理与机电工程系，安徽池州 247000；
2. 安徽大学物理与材料科学学院，安徽合肥230032

收稿日期:2008-10-15 修回日期:2008-11-10 出版日期:2009-05-28 发布日期:2009-05-07
通讯作者: 杨名（1978－），男，博士，安徽合肥人，安徽大学物理与材料科学学院教授，硕士生导师。研究方向为量子信息和量子光学。 E-mail:myangphy@hotmail.com
作者简介:臧学平（1976－），男，安徽池州人，池州学院物理与机电工程系讲师，安徽大学物理与材料科学学院硕士研究生，主要从事理论物理教学和量子光学及量子信息的研究。 E－mail:landaizxp@163.com
基金资助:
安徽省重点科研计划项目（07020504120）；池州学院科研项目（xk0836）

Dipole amplitude-squared squeezing of a moving Ξ-type three-level atom in the binomial states field

ZANG Xue-Ping, YANG Ming

1. Department of Physics and Electromechanical Engineering, Chizhou College, Chizhou, Anhui, 247000,China; 2. School of Physics and Material Science, Anhui University, Hefei, Anhui, 230039,China

Received:2008-10-15 Revised:2008-11-10 Published:2009-05-28 Online:2009-05-07

摘要/Abstract

摘要：

采用求解Schrödinger方程和数值计算方法，研究了与二项式光场相互作用的Ξ型运动三能级原子的偶极振幅平方压缩特性，分析了光场参数、场模速度参数、参数和光场与原子的耦合系数对原子偶极振幅平方压缩的影响。结果表明，随光场参数增大，原子偶极振幅平方从无压缩到呈现周期性压缩，压缩深度逐渐加深；随场模速度参数增大，原子偶极振幅平方由周期性不完全压缩到完全压缩；随参数增大，原子偶极振幅平方从不压缩到周期性压缩，最后过渡到不压缩；光场与原子的耦合系数不影响原子偶极振幅平方压缩。

关键词: 量子光学, 振幅平方压缩, 二项式光场, 运动三能级原子

Abstract:

The atomic dipole amplitude-squared squeezing effects of a Ξ-type three-level atom interacting with the binomial states field were studied by solving Schrödinger equation and numerical calculation. We analyzed the effects of the optical field parameter, the field-mode speed, the -parameter, and the optical field and atomic coupling coefficient on the atomic dipole amplitude-squared squeezing effects. The results indicate that, with the optical field parameter increasing, the atomic dipole amplitude-squared from does not have compresses to presents the periodic squeezing, the squeezing depth deepens gradually.Increases along with the field-mold speed, the atomic dipole amplitude-squared from squeezing incompletely to squeezes completely. Increase along with the -parameter the atomic dipole amplitude-squared does not compress to the periodic squeezing, finally it does not squeeze. The optical field and the atomic coupling coefficient do not affect an atomic dipole amplitude square squeezing.

Key words: quantum optics, amplitude-squared squeezing, the binomial states field, a moving three-level atom

中图分类号:

0431.2

臧学平杨名. 二项式光场中运动的Ξ型三能级原子偶极振幅平方压缩[J]. J4, 2009, 26(3): 327-332.

ZANG Xue-Ping, YANG Ming. Dipole amplitude-squared squeezing of a moving Ξ-type three-level atom in the binomial states field[J]. J4, 2009, 26(3): 327-332.

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