arXiv:cond-mat/0112055 Abstract

arXiv:cond-mat/0112055Abstract References Reviews Resources

Two-atomic potential and distortion of excitation spectrum of liquid He-4 by admixture of He-3

D. B. Baranov, V. S. Yarunin, A. I. Kirillov

Published 2001-12-04, updated 2001-12-24Version 2

The new interatomic potential g(r), providing the tunnelling of atoms, is suggested for calculating HFB phonon-roton spectrum E(p) of liquid He-4. The tunnelling enables the calculations to reproduce the experimental dependence of shifts E(p) on pressure P induced by He-3 admixture in the constant total density and volume.

Comments: 5 pages, 2 eps figures, added references

Categories: cond-mat.stat-mech

Keywords: excitation spectrum, two-atomic potential, distortion, calculating hfb phonon-roton spectrum, constant total density

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