Dark lump excitations in Bose-Einstein condensates

被引：0
|
作者：
Huang, GX [1 ]
Zhu, SH
机构：
[1] E China Normal Univ, Key Lab Opt & Magnet Resonance Spect, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2002年 / 19卷 / 01期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the dynamics of two-dimensional matter-wave pulses in a Bose-Einstein condensate with disk-shaped traps. For the case of repulsive atom-atom interactions, a Kadomtsev-Petviashvili equation with positive dispersion is derived using the method of multiple scales. The results show that it is possible to excite dark lump-like two-dimensional nonlinear excitations in the Bose-Einstein condensate.
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页码：17 / 19
页数：3
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