Smooth vortex precession in superfluid 4He
Superconductivity
2009-11-07 v1
Abstract
We have measured a precessing superfluid vortex line, stretched from a wire to the wall of a cylindrical cell. By contrast to previous experiments with a similar geometry, the motion along the wall is smooth. The key difference is probably that our wire is substantially off center. We verify several numerical predictions about the motion, including an asymmetry in the precession signature, the behavior of pinning events, and the temperature dependence of the precession.
Cite
@article{arxiv.cond-mat/0104525,
title = {Smooth vortex precession in superfluid 4He},
author = {L. Hough and L. A. K. Donev and R. J. Zieve},
journal= {arXiv preprint arXiv:cond-mat/0104525},
year = {2009}
}
Comments
8 pages, 8 figures