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

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

2001-12-04

arxiv.org/abs/cond-mat/0112055v2

Physics

Condensed Matter

Statistical Mechanics

5 pages, 2 eps figures, added references

Scientific paper

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.

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