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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:
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.
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页码:3563 / 3574
页数:12
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