囚禁势中玻色-爱因斯坦凝聚体的半轴宽度和粒子数密度  

The Resonance Length and Particles Density of Bose-Einstein Condensation in Trapping Potential

作　　者：杨占金[1] 柴兆亮[1] 李晨旭[1] 马晓栋[1] 

机构地区：[1]新疆师范大学物理与电子工程学院,新疆乌鲁木齐830054

出　　处：《新疆师范大学学报（自然科学版）》2012年第1期47-49,共3页Journal of Xinjiang Normal University(Natural Sciences Edition)

基　　金：新疆师范大学研究生创新基金项目(编号:20111202)

摘　　要：文章计算了准一维、准二维、球对称、轴对称系统的玻色-爱因斯坦凝聚体的半轴宽度和粒子数密度,采用求基态能量极小值和令势能等于相互作用能的办法,讨论的问题包括凝聚体半轴宽度的解析表达式、粒子数密度的理论计算值与实验数据的对比分析和吸引相互作用系统的塌缩粒子数。This paper calculated the semi--axes length and particles density of Bose--Einstein Conden- sation with quasi one--dimensional, quasi--two--dimensional, spherically and axial symmetric. With the approach minimizing ground--state energy and equating potential energy and interactional energy, issuesdiscussed in the paper include the analytical expressions of the condensation semi--axes length, compara- tive analysis of theoretical values and experimental data of particles density, and collapse critical particle number of attractive interaction system.

关 键 词：玻色-爱因斯坦凝聚 塌缩粒子数 半轴宽度 粒子数密度 

分 类 号：O469[理学—凝聚态物理]