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Dynamics of vector solitons in two-component Bose-Einstein condensates with time-dependent interactions and harmonic potential

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【作者】 周政俞慧友颜家壬

【Author】 Zhou Zheng, Yu Hui-You, and Yan Jia-Ren College of Physics and Information Science, Hunan Normal University, Changsha 410081, China

【机构】 College of Physics and Information Science,Hunan Normal University

【摘要】 We present two kinds of exact vector-soliton solutions for coupled nonlinear Schrdinger equations with time-varying interactions and time-varying harmonic potential. Using the variational approach, we investigate the dynamics of the vector solitons. It is found that the two bright solitons oscillate about slightly and pass through each other around the equilibration state which means that they are stable under our model. At the same time, we obtain the opposite situation for dark-dark solitons.

【Abstract】 We present two kinds of exact vector-soliton solutions for coupled nonlinear Schrdinger equations with time-varying interactions and time-varying harmonic potential. Using the variational approach, we investigate the dynamics of the vector solitons. It is found that the two bright solitons oscillate about slightly and pass through each other around the equilibration state which means that they are stable under our model. At the same time, we obtain the opposite situation for dark–dark solitons.

【基金】 Projects supported by the National Natural Science Foundation of China (Grant Nos. 10775049 and 10375022)
  • 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2010年01期
  • 【分类号】O469
  • 【被引频次】3
  • 【下载频次】10
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