Decay of quantised vorticity by sound emission
C. F. Barenghi, N. G. Parker, N. P. Proukakis, C. S. Adams
Abstract
It is thought that in a quantum fluid sound generation is the ultimate sink of turbulent kinetic energy in the absence of any other dissipation mechanism near absolute zero. We show that a suitably trapped Bose-Einstein condensate provides a model system to study the sound emitted by accelerating vortices in a controlled way.
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