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Article

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1989

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/9750

Model-independent bounds for the potential and kinetic energy of liquid 4He at zero temperature

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http://dx.doi.org/10.1103/PhysRevB.39.2700

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.

Subject

Superfluïdesa, Heli líquid

Subject (English)

Superfluidity, Liquid helium

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

BORONAT MEDICO, Jordi, FABROCINI, A. and POLLS MARTÍ, Artur. Model-independent bounds for the potential and kinetic energy of liquid 4He at zero temperature. Physical Review B. 1989. Vol. 39, num. 4, pags. 2700-2702. ISSN 0163-1829. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/9750

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