玻色-爱因斯坦凝聚与二项式光场相互作用系统中的压缩特性  

The Squeezing Properties of the Binomial States Field Interacting with Atomic Bose-Einstein Condensate

作　　者：宫艳丽[1] 萨楚尔夫[1] 崔英华[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2007年第5期605-609,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60467002);内蒙古自然科学基金资助项目(200408020107);内蒙古高等学校科研基金资助项目(NJ03038)

摘　　要：根据二能级原子玻色-爱因斯坦凝聚体与二项式光场耦合系统的相互作用特点,研究了二项式光场和玻色-爱因斯坦凝聚系统的耦合输出相干原子束的压缩性质.结果表明:光场的两正交分量的涨落均可压缩,压缩程度受系统参数的影响,并且随时间呈周期性变化;原子激光的两正交分量的涨落也均可压缩,改变光场与原子间的相互作用强度时,原子间的相互作用不利于原子激光压缩效应的产生,若考虑存在外场作用,则外场对压缩效应将产生明显的影响.The squeezing properties of the binomial states field interacting with Bose-Einstein condensate （BEC） of two-level atoms were studied in this paper. The results indicated that one of the two quadrature components of light field evolves periodically with time and can be squeezed,and the system parame- ters influence the squeezing depth; the fluctuations of two quadrature components of the atomic laser can be squeezed alternatively as the variety of the parameter of light field interacting with atoms and the interaction among the atoms in BEC is disadvantageous to the squeezing of atomic lasers, whereas the atomic laser can show complete squeezing effects as the influence of light field is considered.

关 键 词：玻色-爱因斯坦凝聚 原子激光 二项式态 压缩二项式光场 压缩原子激光 

分 类 号：O431[机械工程—光学工程]