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Lookup NU author(s): Dr Demosthenes Kivotides,
Professor Carlo Barenghi,
Emeritus Professor Yuri Sergeev
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Recent experiments have shown that micron-size particles can be trapped in quantized vortices in superfluid helium. We present results of a dynamically self-consistent calculation of the nonlinear interaction of a sphere and a vortex. We find that, depending on the regime, the sphere can be trapped in the vortex or break free from it. We also find that, if trapped, the sphere can travel along the vortex. We analyze the role played by the various forces acting on the sphere during the interaction. © 2007 The American Physical Society.
Author(s): Kivotides D, Barenghi CF, Sergeev YA
Publication type: Article
Publication status: Published
Journal: Physical Review B - Condensed Matter and Materials Physics
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
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