三势阱玻色爱因斯坦凝聚体三体复合效应的数值研究  

The Numerica Study of Triple-well Trapped Bose Einstein Condensation Effect

作　　者：穆爱霞[1] 朱天荣[1] 

机构地区：[1]平凉医学高等专科学校,甘肃平凉744000

出　　处：《大学物理实验》2015年第4期4-6,26,共4页Physical Experiment of College

基　　金：国家自然科学基金(标准号:10774120;10475066);甘肃省自然科学基金(批准号:3ZS05 A25-013)

摘　　要：文章中着重研究在三势阱中的凝聚体所受到的非弹性碰撞相互作用,考虑有三体复合耗散和原子填充时三势阱中玻色-爱因斯坦凝聚体动力学性质,研究了三势阱中玻色-爱因斯坦凝聚体系的自囚禁与宏观量子遂穿问题,用数值分析和解析推导的方法,发现自俘获和宏观量子隧穿现,另外,在自俘获和宏观量子隧穿进程中发现了量子拍现象,并对这些现象给出合理的解释。We study the three-body interaction in triple-well trapped Bose-Einstein Condensates. We investi- gate the stability in triple-well trapped Bose-Einstein condensates with atoms feeding and loss effects, self-trap- ping phenomenon and macroscopic tunnelling problem in triple-well trapped Bose-Einstein condensates are in- vestigated. We observe the quantum beating phenomenon during the self-trapping and quantum tunnelling. At last, reasonable interpretations for these findings are given with numerical and analytical method.

关 键 词：玻色爱因斯坦凝聚体 自俘获 量子拍 

分 类 号：O415.6[理学—理论物理]