Lookup NU author(s): Mx Em Rickinson,
Dr Nicholas Parker,
Dr Andrew Baggaley,
Professor Carlo Barenghi
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Physical Society, 2019.
For re-use rights please refer to the publisher's terms and conditions.
We numerically study the spatial spreading of quantized vortex lines in low-temperature liquid helium. The vortex lines, initially concentrated in a small region, diffuse into the surrounding vortex-free helium, a situation which is typical of many experiments. We find that this spreading, which occurs in the absence of viscosity, emerges from the interactions between the vortex lines and can be interpreted as a diffusion process with effective coefficient equal to approximately 0.5k where k is the quantum of circulation.
Author(s): Rickinson E, Parker NG, Baggaley AW, Barenghi CF
Publication type: Article
Publication status: Published
Journal: Physical Review B
Print publication date: 03/06/2019
Online publication date: 03/06/2019
Acceptance date: 22/05/2019
Date deposited: 04/06/2019
ISSN (print): 2469-9950
ISSN (electronic): 2469-9969
Publisher: American Physical Society
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