Dynamics of quantized vortices in a torsional oscillator under rotation: Proposed experiments in supersolid 4He

Minoru Kubota*, Muneyuki Fukuda, Toshiaki Obata, Yuji Ito, Andrey Penzev, Tomoki Minoguchi, Edouard Sonin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Recently there have been reports of superfluidity in solid 4He and possibly in other solids. One of the common features of these systems is their small superfluid density. This would imply a rather long three dimensional (3D) coherence length. Sub-monolayer superfluid 4He films condensed on 3D connected surfaces show 3D superfluid transitions, in some cases with a rather small 3D superfluid density and a long 3D coherence length, which implies a large 3D vortex core size. We have previously detected 3D vortex lines in a 3D superfluid made of a sub-monolayer 4He film condensed on the pore surface of large pore diameter porous glass, by measuring the energy dissipation in a torsional oscillator under rotation. We propose application of this method to the new supersolids.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages283-284
Number of pages2
DOIs
StatePublished - 2006
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 10 Aug 200617 Oct 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/TerritoryUnited States
CityOrlando, FL
Period10/08/0617/10/06

Keywords

  • Energy dissipation
  • Rotationally induced vortex lines
  • Superfluid
  • Supersolid
  • Vortex pairs
  • Vortex rings

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