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Sound emission due to superfluid vortex reconnections.

Leadbeater, M. and Winiecki, T. and Samuels, D. C. and Barenghi, C. F. and Adams, C. S. (2001) 'Sound emission due to superfluid vortex reconnections.', Physical review letters., 86 (8). pp. 1410-1413.


By performing numerical simulations based on the Gross-Pitaevskii equation, we make direct quantitative measurements of the sound energy released due to superfluid vortex reconnections. We show that the energy radiated expressed in terms of the loss of vortex line length is a simple function of the reconnection angle. In addition, we study the temporal and spatial distribution of the radiation and show that energy is emitted in the form of a sound pulse with a wavelength of a few healing lengths.

Item Type:Article
Keywords:Quantum fluids, Helium, HE-4.
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Publisher statement:© 2001 by The American Physical Society. All rights reserved.
Record Created:26 Jan 2009
Last Modified:05 Aug 2011 14:08

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