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Title: Model-independent bounds for the potential and kinetic energy of liquid 4He at zero temperature
Author: Boronat Medico, Jordi
Fabrocini, A.
Polls Martí, Artur
Keywords: Superfluïdesa
Heli líquid
Liquid helium
Issue Date: 1989
Publisher: The American Physical Society
Abstract: Using the experimental values of the chemical potentials of liquid 4He and of a 3He impurity in liquid 4He, we derive a model-independent lower (upper) bound to the kinetic (potential) energy per particle at zero temperature. The values of the bounds at the experimental saturation density are 13.42 K for the kinetic energy and -20.59 K for the potential energy. All the theoretical calculations based on the Lennard-Jones potential violate the upper-bound condition for the potential energy.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1989, vol. 39, núm. 4, p. 2700-2702.
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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