Critical Velocity for He II Superfluidity Motion in Channels Narrower than Micrometer

2004/10/19 by J. X. Zheng-Johansson, Zheng-Johansson, J. X.
Engineering · Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #Quantum, superfluid, helium dynamics #Superconducting Materials and Applications #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/0410485

5 pages, 1 figure. Minor update

openalex publication_date 2004/10/19 · arxiv created 2009/06/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We derive an exact equation for the critical velocity for He II superfluidity motion in channels of width <10^-5 m for which no quantitatively satisfactory prediction exists prior to this work.

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