Second-viscosity phenomena in dilute solutions of3He in superfluid4He

A. Yaniv, Y. Disatnik

Research output: Contribution to journalArticlepeer-review

Abstract

A theory of second-viscosity phenomena in dilute solutions of3He in superfluid4He is presented. The theory considers only phonon and3He quasiparticle excitations and is therefore valid at temperatures below about 0.6 K. It is shown, by an exact calculation, that within the framework of the Landau-Pomeranchuck model for the3He quasiparticle excitation energy, the four second-viscosity coefficients are related to one another and that only one of them is actually an independent kinetic coefficient. The relations between the second-viscosity coefficients are applied to analyze the expressions for the dissipative function and the first- and the second-sound attenuation coefficients. It is shown that the second-viscosity contribution to the second-sound attenuation is smaller by an order of magnitude than its contribution to the first-sound attenuation.

Original languageEnglish
Pages (from-to)793-803
Number of pages11
JournalJournal of Low Temperature Physics
Volume10
Issue number5-6
DOIs
StatePublished - Mar 1973

Fingerprint

Dive into the research topics of 'Second-viscosity phenomena in dilute solutions of3He in superfluid4He'. Together they form a unique fingerprint.

Cite this