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Title: Response of liquid 3He at finite temperatures
Author: Barranco Gómez, Manuel
Hernández, E. Susana
Navarro Faus, Jesús
Keywords: Equacions d'estat
Equations of state
Issue Date: 1996
Publisher: The American Physical Society
Abstract: The random-phase-approximation (RPA) dynamical response of liquid 3 He at finite temperatures has been calculated using an effective density-dependent atom-atom interaction. The interaction contains a zero-range part of Skyrme type, supplemented by a weighted density approximation to account for short-range correlations, and a long-range effective interaction of Lennard-Jones type. The calculated zero-sound and paramagnon energy centroids agree reasonably with data, and the calculated strength exhibits a negative energy tail extending up to -0.5 meV, also in good agreement with existing data. We have found that opposite to what happens with zero sound, within RPA the paramagnon peak is rather insensitive to thermal broadening.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1996, num. 54, núm. 10, p. 7394-7400
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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