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Modulational Instability of (1+1)-Dimensional Bose--Einstein Condensate with Three-Body Interatomic Interaction |
| WU Lei;ZHANG Jie-Fang |
| Institute of Nonlinear Physics, Zhejiang Normal University, Jinhua 321004 |
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| Cite this article: |
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WU Lei, ZHANG Jie-Fang 2007 Chin. Phys. Lett. 24 1471-1474 |
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Abstract The modulational instability of Bose--Einstein condensate with three-body interatomic interaction and external harmonic trapping potential is investigated. Both of our analytical and numerical results show that the external potential will either cause the excitation of modulationally unstable modes or restrain the modulationally unstable modes from growing.
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| Keywords:
03.75.Kk
03.75.Lm
42.65.Sf
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Received: 14 December 2006
Published: 17 May 2007
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| PACS: |
03.75.Kk
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(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
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03.75.Lm
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(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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