Sound-ring radiation of expanding vortex clusters
نویسندگان
چکیده
We investigate wave-vortex interaction emerging from an expanding compact vortex cluster in a two-dimensional Bose-Einstein condensate. adapt techniques developed for gravitational objects to derive the characteristic modes of perturbatively around effective flow field. demonstrate existence orbits or sound-rings, analogy light-rings, and compute spectrum out-of-equilibrium cluster. The obtained numerical simulations stochastic Gross-Pitaevskii equation exhibiting is excellent agreement with analytical predictions. Our findings are relevant 2d-quantum turbulence, semi-classical limit fluid flows, rotating discrete circulation.
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ژورنال
عنوان ژورنال: Physical review research
سال: 2022
ISSN: ['2643-1564']
DOI: https://doi.org/10.1103/physrevresearch.4.023099