Persistent currents in doubly connected superfluid helium

When a current of superfluid helium is impressed across an asymmetric doubly connected region around which no circulation exists, the state of zero circulation is maintained provided all velocities remain subcritical. If the current is increased, the velocity in the shorter channel (assuming the wid...

Full description

Saved in:
Bibliographic Details
Published in:Physica 1966-01, Vol.32 (10), p.1693-1699
Main Authors: Sikora, Paul, Hammel, E.F., Keller, W.E.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:When a current of superfluid helium is impressed across an asymmetric doubly connected region around which no circulation exists, the state of zero circulation is maintained provided all velocities remain subcritical. If the current is increased, the velocity in the shorter channel (assuming the width of each channel the same) will eventually reach its critical value. Further increase of the current will result in the generation of circulation which remains trapped in the system when the current is reduced to zero.
ISSN:0031-8914
DOI:10.1016/0031-8914(66)90083-8