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Dynamics of Bright Solitons in Bose-Einstein Condensates with Complicated Potential |
| ZHAO Li-Chen, YANG Zhan-Ying, ZHANG Tao, SHI Kang-Jie |
| Department of Physics, Northwest University, Xi'an 710069 |
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| Cite this article: |
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ZHAO Li-Chen, YANG Zhan-Ying, ZHANG Tao et al 2009 Chin. Phys. Lett. 26 120301 |
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Abstract We present analytical solutions of the one-dimensional nonlinear Schrodinger equations of Bose-Einstein condensates in an expulsive parabolic background with a complex potential and gravitational field, by performing the Darboux transformation from a trivial seed solution. It is shown that under a safe range of parameter, the shape of bright soliton can be controlled well by adjusting the experimental parameter of the ratio of axial oscillation to radial oscillation and feeding condensates from a thermal cloud. The gravitational field can change the contrail of the bright soliton trains without changing their peak and width.
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| Keywords:
03.75.Lm
02.30.Lk
05.45.Yv
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Received: 12 June 2009
Published: 27 November 2009
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| PACS: |
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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02.30.Lk
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05.45.Yv
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(Solitons)
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