Ballistic propagation of thermal excitations near a vortex in superfluid He3-B

C. F. Barenghi, Y. A. Sergeev, N. Suramlishvili

Research output: Contribution to journalArticle (Academic Journal)peer-review

19 Citations (Scopus)

Abstract

Andreev scattering of thermal excitations is a powerful tool for studying quantized vortices and turbulence in superfluid He3-B at very low temperatures. We write Hamilton's equations for a quasiparticle in the presence of a vortex line, determine its trajectory, and find under wich conditions it is Andreev reflected. To make contact with experiments, we generalize our results to the Onsager vortex gas, and find values of the intervortex spacing in agreement with less rigorous estimates.
Original languageEnglish
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume77
Issue number10
DOIs
Publication statusPublished - 13 Mar 2008

Keywords

  • cond-mat.other

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