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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/144299
Spinning superfluid He-4 nanodroplets
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We have studied spinning superfluid He-4 nanodroplets at zero temperature using density functional theory. Due to the irrotational character of the superfluid flow, the shapes of the spinning nanodroplets are very different from those of a viscous normal fluid drop in steady rotation. We show that when vortices are nucleated inside the superfluid droplets, their morphology, which evolves from axisymmetric oblate to triaxial prolate to two-lobed shapes, is in good agreement with experiments. The presence of vortex arrays confers to the superfluid droplets the rigid-body behavior of a normal fluid in steady rotation, and this is the ultimate reason for the surprising good agreement between recent experiments and the classical models used for their description.
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ANCILOTTO, Francesco, BARRANCO GÓMEZ, Manuel and PI PERICAY, Martí. Spinning superfluid He-4 nanodroplets. Physical Review B. 2018. Vol. 97, num. 18, pags. 184515. ISSN 2469-9950. [consulted: 11 of June of 2026]. Available at: https://hdl.handle.net/2445/144299