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Excitation of Josephson Currents by Aerogel Vibrations in Superfluid 3He
- Authors: Surovtsev E.V.1
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Affiliations:
- Kapitza Institute for Physical Problems, Russian Academy of Sciences
- Issue: Vol 118, No 9-10 (11) (2023)
- Pages: 754-760
- Section: Articles
- URL: https://rjsvd.com/0370-274X/article/view/664239
- DOI: https://doi.org/10.31857/S1234567823220093
- EDN: https://elibrary.ru/OGQLIF
- ID: 664239
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Abstract
The problem of mechanical vibrations of an aerogel attached to an elastic wire in superfluid 3He is solved for the case, where the aerogel is also in a superfluid state. The hydrodynamic boundary conditions at the aerogel surface formulated in this work allow one to explain the anomalously rapid increase in the frequency of mechanical vibrations of the system on cooling. The found relation between the phase jump at the aerogel boundary and the superfluid current flowing across the boundary suggests the Josephson character of such current.
About the authors
E. V. Surovtsev
Kapitza Institute for Physical Problems, Russian Academy of Sciences
Author for correspondence.
Email: e.v.surovtsev@gmail.com
119334, Moscow, Russia
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