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arXiv · 1905.09738

Rotating binary Bose-Einstein condensates and vortex clusters in quantum droplets

M. Nilsson Tengstrand·P. Stürmer·E. Karabulut·S. M. Reimann
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Abstract

Quantum droplets may form out of a gaseous Bose-Einstein condensate, stabilized by quantum fluctuations beyond mean field. We show that multiple singly-quantized vortices may form in these droplets at moderate angular momenta in two dimensions. Droplets carrying these precursors of an Abrikosov lattice remain self-bound for certain timescales after switching off an initial harmonic confinement. Furthermore, we examine how these vortex-carrying droplets can be formed in a more pertubation-resistant setting, by starting from a rotating binary Bose-Einstein condensate and inducing a metastable persistent current via a non-monotonic trapping potential.

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M. Nilsson Tengstrand, P. Stürmer, E. Karabulut, S. M. Reimann. 2019-05-23. Rotating binary Bose-Einstein condensates and vortex clusters in quantum droplets. https://doi.org/10.1103/physrevlett.123.160405

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