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物理学报. 2008, 57(6): 3435-3439.
doi: 10.7498/aps.57.3435.
光晶格中双组分偶极玻色-爱因斯坦凝聚体的调制不稳定性
- 收稿日期: 2007-11-01
- 修回日期: 2007-11-18
- 刊出日期: 2008-03-05
摘要: 利用线性稳定性分析的方法，对光晶格中双组分偶极玻色-爱因斯坦凝聚体(Bose-Einstein condensates，简称BECs)的调制不稳定性进行了研究.得到了光晶格中双组分偶极BECs原子系统调制不稳定性区域的分布与在位相互作用和由偶极-偶极相互作用所导致的格点间BECs相互作用之间的关系.结果显示，格点间BECs的相互作用对光晶格中双组分偶极BECs的调制不稳定性有较大的影响，这可为实际应用中如何操控双组分偶极BECs提供有用的信息.
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关键词:
- 光晶格 /
- 双组分玻色-爱因斯坦凝聚体 /
- 调制不稳定性 /
- 偶极-偶极相互作用
English Abstract
Modulational instability of two-component dipolar Bose-Einstein condensates in an optical lattice
- Received Date:
01 November 2007
- Accepted Date:
18 November 2007
- Published Online:
05 March 2008
Abstract: From the linear stability analysis，the modulational instability (MI) of two-component dipolar Bose-Einstein condensates (BECs) in an optical lattice is studied. The relation of the region of MI with the on-site interaction and the site-to-site interaction induced by the dipole-dipole interaction is obtained. The results show that there is a great influence of site-to-site interaction on the MI of the two-component dipolar BECs in the optical lattices. This gives us some useful information for manipulating two-component dipolar BECs in practice.
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