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arXiv · 2212.08782

Rossby-Haurwitz wave in a rotating bubble-shaped Bose-Einstein condensate

Hiroki Saito·Masazumi Hayashi
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Abstract

A Rossby-Haurwitz (RH) wave is an excitation mode of a fluid on a rotating spherical surface, which propagates westward in the rotating frame of reference. Motivated by the recent realization of the shell-shaped Bose-Einstein condensate in microgravity, we investigate the RH wave in a superfluid rotating on a spherical-surface geometry. We employ the point-vortex model and the three-dimensional Gross-Pitaevskii equation, and numerically demonstrate that RH waves can be observed in the system of a superfluid with quantized vortices.

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Hiroki Saito, Masazumi Hayashi. 2022-12-17. Rossby-Haurwitz wave in a rotating bubble-shaped Bose-Einstein condensate. https://doi.org/10.7566/jpsj.92.044003

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