| 非对称的玻色-爱因斯坦凝聚中的约瑟夫森结的动力学性质 |
| |
| 引用本文： | 肖宇飞,王登龙,王凤姣,颜晓红.非对称的玻色-爱因斯坦凝聚中的约瑟夫森结的动力学性质[J].物理学报,2006,55(2):547-550. |
| |
| 作者姓名： | 肖宇飞 王登龙 王凤姣 颜晓红 |
| |
| 作者单位： | (1)湘潭大学物理系和现代物理研究所，湘潭 411105; (2)湘潭大学物理系和现代物理研究所，湘潭 411105;南京航天航空大学理学院,南京 210016 |
| |
| 基金项目： | 教育部科学技术研究项目;湖南省教育厅科研项目 |
| |
| 摘 要： | 利用半经典量子理论，研究了玻色-爱因斯坦凝聚体处于非对称的约瑟夫森结的动力学行为.结果表明双势阱中不同势阱的基态能量差与其相互作用能量的比率χ=0时，凝聚体表现为约瑟夫森效应；当χ≠0时，凝聚体中既存在量子宏观隧穿效应，又存在量子宏观局域效应.
关键词：
玻色爱因斯坦凝聚
约瑟夫森结
动力学性质
|
| 关 键 词： | 玻色爱因斯坦凝聚 约瑟夫森结 动力学性质 |
| 文章编号： | 1000-3290/2006/55(02)/0547-04 |
| 收稿时间： | 6/1/2005 12:00:00 AM |
| 修稿时间： | 2005-06-012005-07-12 |
Dynamical properties of an asymmetric Josephson junction in Bose-Einstein condensates |
| |
| Xiao Yu-Fei,Wang Deng-Long,Wang Feng-Jiao,Yan Xiao-Hong.Dynamical properties of an asymmetric Josephson junction in Bose-Einstein condensates[J].Acta Physica Sinica,2006,55(2):547-550. |
| |
| Authors: | Xiao Yu-Fei Wang Deng-Long Wang Feng-Jiao Yan Xiao-Hong |
| |
| Institution: | 1.Physics Department and Institute of Modern Physics, Xiangtan University, Xiangtan 411105, China; 2. College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| |
| Abstract: | Based on the semiclassical quantum theory, we study the dynamical behaviors of Bose-Einstein condensate in an asymmetric Josephson junction. It is shown that the Josephson effect appears in the system when the ratio χ of the difference of two ground state energies to the interaction energies is zero. When χ≠0, the dynamical behavior of the system shows both the macroscopic quantum tunneling and the macroscopic quantum localization. |
| |
| Keywords: | Bose-Einstein condensates Josephson junctions dynamical properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
