Spatiotemporal vortex rings in atomic Bose-Einstein condensates

O. G. Chelpanova; Y. I. Kuriatnikov; S. Vilchinskii; A. I. Yakimenko

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arXiv · 1903.01849

Spatiotemporal vortex rings in atomic Bose-Einstein condensates

O. G. Chelpanova·Y. I. Kuriatnikov·S. Vilchinskii·A. I. Yakimenko

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Abstract

We investigate spatiotemporal vortex rings with phase dislocation both in space and time. It is demonstrated that these structures naturally appear as a periodical in time edge phase dislocation at the low-density region of a perturbed atomic Bose-Einstein condensate. The condition of formation, dynamics and stability of the spatiotemporal vortex rings are investigated for repulsive and attractive interatomic interactions. These theoretical findings open up a perspective for experimental observation of novel type of topological coherent structures in ultracold gases.

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O. G. Chelpanova, Y. I. Kuriatnikov, S. Vilchinskii, A. I. Yakimenko. 2019-03-05. Spatiotemporal vortex rings in atomic Bose-Einstein condensates. https://arxiv.org/abs/1903.01849

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