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SUPERFLUID HELIUM

Visualization of quantized vortices

Nature volume 441, page 588 (01 June 2006) | Download Citation

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Abstract

When liquid helium is cooled to below its phase transition at 2.172 K, vortices appear with cores that are only ångströms in diameter, about which the fluid circulates with quantized angular momentum1. Here we generate small particles of solid hydrogen that can be used to image the cores of quantized vortices in their three-dimensional environment of liquid helium. This technique enables the geometry and interactions of these vortices to be observed directly.

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Affiliations

  1. *Department of Physics, Institute for Research in Electronics and Applied Physics, Institute for Physical Sciences and Technology, University of Maryland, College Park, Maryland 20742, USA

    • Gregory P. Bewley
    • , Daniel P. Lathrop
    •  & Katepalli R. Sreenivasan
  2. †Department of Mechanical Engineering, Yale University, New Haven, Connecticut 06520, USA

    • Gregory P. Bewley
  3. ‡International Centre for Theoretical Physics, Trieste 34014, Italy

    • Katepalli R. Sreenivasan

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DOI

https://doi.org/10.1038/441588a

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