Three-wave soliton excitations in a disk-shaped Bose-Einstein condensate

被引：2
|
作者：
Sun, CL [1 ]
Xu, YS
Cui, WN
Huang, GX
Szeftel, J
Hu, BB
机构：
[1] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Key Lab Opt & Magnet Resonance Spect, Shanghai 200062, Peoples R China
[3] Univ Paris 07, Lab Phys Theor Mat Condensee, F-75251 Paris, France
[4] Hong Kong Baptist Univ, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[5] Hong Kong Baptist Univ, Ctr Nonlinear Studies, Hong Kong, Hong Kong, Peoples R China
[6] Univ Houston, Dept Phys, Houston, TX 77204 USA
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2005年 / 19卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Bose-Einstein condensation; solitons; three-wave interaction;
D O I：
10.1142/S0217979205032322
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A three-wave resonant interaction of collective modes and related soliton excitations in a disk-shaped Bose-Einstein condensate are investigated. The phase-matching conditions for the resonant interaction are satisfied by suitably choosing the wavevectors and the frequencies of the collective modes. A set of nonlinearly coupled envelope equations describing the spatio-temporal evolution of the three-wave resonant interaction are derived by using a method of multiple-scales, and some explicit (2+1)-dimensional three-wave soliton solutions are also presented and discussed.
引用
收藏
页码：3563 / 3574
页数：12
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