Rebound-through transition of bright-bright solitons collision in two species condensates with repulsive interspecies interactions

Z. M. He; D. L. Wang; J. W. Ding

doi:10.1088/0253-6102/58/3/10

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arXiv · 1202.0600

Rebound-through transition of bright-bright solitons collision in two species condensates with repulsive interspecies interactions

Z. M. He·D. L. Wang·J. W. Ding

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Abstract

We study the dynamical properties of bright-bright solitons in two species Bose-Einstein condensates with the repulsive interspecies interactions under the external harmonic potentials by using a variational approach combined with numerical simulation. It is found that the interactions between bright-bright solitons vary from repulsive to attractive interactions with the increasing of their separating distances. And the bright-bright solitons can be localized at equilibrium positions, different from the periodic oscillation of bright soliton in the single species condensates. Especially, a through-collision is newly observed from the bright-bright solitons collisions with the increasing of the initial velocity. The collisional type of bright-bright solitons, either rebound - or through -collision, depends on the modulation of the initial conditions. These results will be helpful for the experimental manipulating such solitons.

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Z. M. He, D. L. Wang, J. W. Ding. 2012-02-03. Rebound-through transition of bright-bright solitons collision in two species condensates with repulsive interspecies interactions. https://doi.org/10.1088/0253-6102%2F58%2F3%2F10

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