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arXiv · 2107.08247

Controlled engineering of a vortex-bright soliton dynamics using a constant driving force

Wenlong Wang
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Abstract

A vortex-bright soliton can precess around a fix point. Here, we find numerically that the fixed point and the associated precessional orbits can be shifted by applying a constant driving force on the bright component, the displacement is proportional to the force with a minus sign. This robust dynamics is then discussed theoretically by treating the vortex-bright soliton as an effective point particle, explaining the observed dynamics and predicting new ones that are subsequently confirmed. By appropriately tuning the force, the vortex-bright soliton can be guided following an arbitrary trajectory, including that it can be pinned and released at will. This finding opens a highly flexible and controllable approach of engineering the dynamics of vortical structures in Bose-Einstein condensates.

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Wenlong Wang. 2021-07-17. Controlled engineering of a vortex-bright soliton dynamics using a constant driving force. https://doi.org/10.1088/1361-6455/ac69c0

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