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arXiv · 1504.03203

Bound vortex states and exotic lattices in multi-component Bose-Einstein condensates: The role of vortex-vortex interaction

Davi S. Dantas·Aristeu R. P. Lima·A. Chaves·C. A. S. Almeida·G. A. Farias·M. V. Milošević
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Abstract

We numerically study the vortex-vortex interaction in multi-component homogeneous Bose-Einstein condensates within the realm of the Gross-Pitaevskii theory. We provide strong evidences that pairwise vortex interaction captures the underlying mechanisms which determine the geometric configuration of the vortices, such as different lattices in many-vortex states, as well as the bound vortex states with two (dimer) or three (trimer) vortices. Specifically, we discuss and apply our theoretical approach to investigate intra- and inter-component vortex-vortex interactions in two- and three-component Bose-Einstein condensates, thereby shedding light on the formation of the exotic vortex configurations. These results correlate with current experimental efforts in multi-component Bose-Einstein condensates, and the understanding of the role of vortex interactions in multiband superconductors.

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Davi S. Dantas, Aristeu R. P. Lima, A. Chaves, C. A. S. Almeida, G. A. Farias, M. V. Milošević. 2015-04-13. Bound vortex states and exotic lattices in multi-component Bose-Einstein condensates: The role of vortex-vortex interaction. https://doi.org/10.1103/physreva.91.023630

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