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تسجيل مستخدم جديدTwo-atomic potential and distortion of excitation spectrum of liquid He-4 by admixture of He-3
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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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