| （2＋1）—Dimensional Envelope Solitons in a Disk—Shaped Bose—Einstein Condensate |
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| 引用本文： | HUANGGuo-Xiang 黄国翔.（2＋1）—Dimensional Envelope Solitons in a Disk—Shaped Bose—Einstein Condensate[J].中国物理快报,2003,20(6):802-805. |
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| 作者姓名： | HUANGGuo-Xiang 黄国翔 |
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| 作者单位： | KeyLaboratoryforOpticalandMagneticResonanceSpectroscopyandDepartmentofDhysics,EastChinaNormalUniversity,Shanghai200062 |
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| 摘 要： | We show that, due to the nonlinear coupling between a wavepacket superposed by short-wavelength collective modes and a long-wavelength mean field generated by the self-interaction of the wavepacket, the (2 1)-dimensional envelope solitons decaying in all spatial directions, i.e., dromions, are possible nonlinear excitations in a disk-shaped Bose-Einstein condensate with a repulsive interatomic interaction.
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| 关 键 词： | BEC 玻色－爱因斯坦凝聚 二维包层孤波 非线性耦合 波包 |
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