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(2+1)-Dimensional Envelope Solitons in a Disk-Shaped Bose-Einstein Condensate |
HUANG Guo-Xiang |
Key Laboratory for Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062 |
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Cite this article: |
HUANG Guo-Xiang 2003 Chin. Phys. Lett. 20 802-805 |
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Abstract 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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Keywords:
03.75.Fi
03.65.Ge
42.65.Tg
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Published: 01 June 2003
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