What is recorded here?
Donev, Hough and Zieve used a vibrating wire to follow a single partially attached vortex in superfluid helium. In their rougher cell, pinning became more frequent as temperature rose; a smoother cell showed much less pinning. Varying the wire motion changed the observed decay, and the authors proposed excitation of Kelvin waves as a mechanism that helps a vortex unpin.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The result concerns the two specific cells and stationary post-rotation measurements. Pinning was inferred from the circulation signal, with limited event counts; the Kelvin-wave mechanism is the authors’ interpretation, not an independently isolated causal test. At elevated temperature noise obscured Kelvin oscillations and some decay rates could not be measured accurately. The article proposes further frequency-controlled and surface-characterization experiments. Its printed free-core radius uses 1.3 × 10⁻⁸ Å, a questionable unit that is not silently corrected here. The exact journal version and raw data were not reviewed.
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People and systems
L. A. K. Donev; L. Hough; R. J. Zieve
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
Temperature-dependent pinning and depinning of a single superfluid vortex
Donev, Hough and Zieve used a vibrating wire to follow a single partially attached vortex in superfluid helium. In their rougher cell, pinning became more frequent as temperature rose; a smoother cell showed much less pinning. Varying the wire motion changed the observed decay, and the authors proposed excitation of Kelvin waves as a mechanism that helps a vortex unpin.
Scientific scope
The result concerns the two specific cells and stationary post-rotation measurements. Pinning was inferred from the circulation signal, with limited event counts; the Kelvin-wave mechanism is the authors’ interpretation, not an independently isolated causal test. At elevated temperature noise obscured Kelvin oscillations and some decay rates could not be measured accurately. The article proposes further frequency-controlled and surface-characterization experiments. Its printed free-core radius uses 1.3 × 10⁻⁸ Å, a questionable unit that is not silently corrected here. The exact journal version and raw data were not reviewed.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
L. A. K. Donev; L. Hough; R. J. Zieve
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.