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Sound emission due to superfluid vortex reconnections

Lookup NU author(s): Dr David Samuels, Professor Carlo Barenghi

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Abstract

Sound energy released due to superfluid vortex reconnections was quantitatively measured using numerical simulations based on Gross-Pitaevskii equations. Radiation of energy expressed as loss of vortex line length was a function of reconnection angle. A wavelength of few healing lengths, resulted in energy emission as a sound pulse.

Publication metadata

Author(s): Leadbeater M, Winiecki T, Samuels DC, Barenghi CF, Adams CS

Publication type: Article

Publication status: Published

Journal: Physical Review Letters

Year: 2001

Volume: 86

Issue: 8

Pages: 1410-1413

ISSN (print): 0031-9007

ISSN (electronic): 1079-7114

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevLett.86.1410

DOI: 10.1103/PhysRevLett.86.1410

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