Sound emission due to superfluid vortex reconnections

Preprint

5 September 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0009060

Abstract

By performing numerical simulations of superfluid vortex ring collisions we make direct quantitative measurements of the sound energy released due to 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 rarefaction pulse. The pulse evolves into a sound wave with a wavelength of 6-8 healing lengths.

Keywords

NUMERICAL SIMULATIONS
VORTEX RECONNECTIONS
SUPERFLUID VORTEX
RING COLLISIONS
SOUND EMISSION
EMISSION DUE
VORTEX RING

All Related Versions

Version 1, 2000-09-05, ArXiv
Published version: Physical Review Letters, 86 (8), 1410.

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