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相互作用原子玻色-爱因斯坦凝聚体诱导的光场压缩效应
引用本文:周明,方家元,黄春佳. 相互作用原子玻色-爱因斯坦凝聚体诱导的光场压缩效应[J]. 物理学报, 2003, 52(8): 1916-1919
作者姓名:周明  方家元  黄春佳
作者单位:长沙电力学院物理与信息工程系,长沙 410077
摘    要:给出了光场与二能级原子玻色-爱因斯坦凝聚体(BEC)相互作用系统的哈密顿量,研究了原子 间相互作用对压缩相干态光场与原子BEC相互作用系统中光场正交压缩特性的影响.结果表明 :光场两正交分量的涨落均随时间按余弦规律周期性地变化,其压缩性质依赖于光场的初始 压缩因子和压缩方向角,而原子间的相互作用影响光场正交分量的涨落随时间变化的幅度和 周期.关键词:玻色-爱因斯坦凝聚压缩相干态光场的正交压缩

关 键 词:玻色-爱因斯坦凝聚  压缩相干态  光场的正交压缩
文章编号:1000-3290/2003/52(08)1916-04
收稿时间:2002-09-09
修稿时间:2002-09-09

Squeezing effect of light caused by Bose-Einstein condensate composed of interac tive atoms
Zhou Ming,Fang Jia-Yuan and Huang Chun-Jia. Squeezing effect of light caused by Bose-Einstein condensate composed of interac tive atoms[J]. Acta Physica Sinica, 2003, 52(8): 1916-1919
Authors:Zhou Ming  Fang Jia-Yuan  Huang Chun-Jia
Abstract:The Hamiltonian operator of a system of single-mode light field interacting with Bose-Einstein condensate(BEC) of two-level atoms is suggested within the rotati ng-wave approximation. The influence of the interaction between atoms in the BEC on the quadrature squeezing properties of single-mode squeezed light interactin g with atomic BEC is studied under Bogoliubov approximation. The results show th at the fluctuations of two quadrature components of light evolve periodically in a cosine law and their squeezing properties are determined mainly by the initia l squeeze factor and squeeze direction angle of light, and that the interaction between atoms in BEC changes the amplitude and period of fluctuation of light.
Keywords:Bose-Einstein condensate   squeezed state   quadrature squeezing of li ght
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