Detection of vortices in superfluid 4He in the T = 0 limit using charged vortex rings

Paul M. Walmsley, A. A. Levchenko, S. E. May, Andrei I. Golov

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We describe the experiment to study the dynamics of quantized vortex lines in superfluid 4He at temperatures down to 40 mK, i.e., without any normal component. This was achieved by monitoring the trapping of small charged vortex rings by an array of rectilinear vortex lines produced by rotating the cryostat. The design of the experimental cell is described. Our first observations of the response of the superfluid in the T = 0 limit to starting and stopping rotation are presented. © Springer Science+Business Media, LLC 2007.
    Original languageEnglish
    Pages (from-to)511-523
    Number of pages12
    JournalJournal of Low Temperature Physics
    Volume146
    Issue number5-6
    DOIs
    Publication statusPublished - Mar 2007

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