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Collision of a tracer particle and a quantized vortex in superfluid helium: Self-consistent calculations

Lookup NU author(s): Dr Demosthenes Kivotides, Professor Carlo Barenghi, Emeritus Professor Yuri Sergeev

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Abstract

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.

Publication metadata

Author(s): Kivotides D, Barenghi CF, Sergeev YA

Publication type: Article

Publication status: Published

Journal: Physical Review B - Condensed Matter and Materials Physics

Year: 2007

Volume: 75

Issue: 21

Pages: -

ISSN (print): 1098-0121

ISSN (electronic): 1550-235X

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevB.75.212502

DOI: 10.1103/PhysRevB.75.212502

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