Sound-ring radiation of expanding vortex clusters
Sound-ring radiation of expanding vortex clusters
复制标题
膨胀涡团的声环辐射
DOI:
10.1103/physrevresearch.4.023099
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发表时间:
2022
影响因子:
4.2
通讯作者:
Geelmuyden A
中科院分区:
文献类型:
--
作者:
Geelmuyden A
We investigate wave-vortex interaction emerging from an expanding compact vortex cluster in a two-dimensional Bose-Einstein condensate. We adapt techniques developed for compact gravitational objects to derive the characteristic modes of the wave-vortex interaction perturbatively around an effective vortex flow field. We demonstrate the existence of orbits or sound rings, in analogy to gravitational light rings, and compute the characteristic spectrum for the out-of-equilibrium vortex cluster. The spectrum obtained from numerical simulations of a stochastic Gross-Pitaevskii equation exhibiting an expanding vortex cluster is in excellent agreement with analytical predictions. Our findings are relevant for two-dimensional quantum turbulence, the semiclassical limit around fluid flows, and rotating compact objects exhibiting discrete circulation.
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DOI:
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发表时间:
2008
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影响因子:
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作者:
N. Proukakis;B. Jackson
通讯作者:
B. Jackson
影响因子:
3.5
作者:
Théo Torres;Sam Patrick;Maurício Richartz;S. Weinfurtner
通讯作者:
S. Weinfurtner
DOI:
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发表时间:
--
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--
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DOI:
10.1140/epjd/e2003-00015-y
发表时间:
2002
期刊:
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
影响因子:
--
作者:
M. Modugno;L. Pricoupenko;Y. Castin
通讯作者:
Y. Castin