Vortex arrays in a rotating superfluid He4 nanocylinder

Francesco Ancilotto, Martí Pi, and Manuel Barranco
Phys. Rev. B 90, 174512 – Published 24 November 2014

Abstract

Within density functional theory, we investigate stationary many-vortex structures in a rotating He4 nanocylinder at zero temperature. We compute the stability diagram and compare our results with the classical model of vortical lines in an inviscid and incompressible fluid. Scaling the results to millimeter-size buckets, they can be compared with experiments on vortex arrays conducted in the past. Motivated by recent experiments that have used atomic impurities as a means of visualizing vortices in superfluid He4 droplets, we have also considered the formation of chains of xenon atoms along a vortex line and the interaction between xenon atoms inside the same vortex and on different neighboring vortex lines.

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  • Received 17 October 2014
  • Revised 14 November 2014

DOI:https://doi.org/10.1103/PhysRevB.90.174512

©2014 American Physical Society

Authors & Affiliations

Francesco Ancilotto1,2, Martí Pi3, and Manuel Barranco3

  • 1Dipartimento di Fisica e Astronomia “Galileo Galilei” and CNISM, Università di Padova, via Marzolo 8, 35122 Padova, Italy
  • 2CNR-IOM Democritos, via Bonomea 265, 34136 Trieste, Italy
  • 3Departament ECM, Facultat de Física, and IN2 UB, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain

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Vol. 90, Iss. 17 — 1 November 2014

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