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The Nucleation of Vortices in Superfluid 4He: Answers and Questions
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27

augustus 2024

2024/2025

A+
1. APPARATUS and EXPERIMENTAL TECHNIQUES 1.1. Vibration Isolation and Checks For the quantum phase slips to be useful as a probe of vortex nucleation mech- anisms, one must be able to observe slips which are due to intrinsic mechanisms. Previous work 12,13, 6,14,15 showed that above T = 150 mK thermally activated pro- cesses dominated slip production. A deviation from this dependence was seen at lower temperatures when large amounts of 3He impurities were present in the 4He sample ...
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