Publication
Physical Review B
Paper

Phonon dispersion in liquid He II

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Abstract

The eigenfunctions of the linearized collision operator for the phonons in superfluid helium are determined numerically. The calculated sound velocity is in quantitative agreement with experimental data in a wide frequency and temperature range if an anomalous dispersion γ=-1038 in cgs units is used. © 1975 The American Physical Society.

Date

01 Nov 1975

Publication

Physical Review B

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