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Title:
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Model-independent bounds for the potential and kinetic energy of liquid 4He at zero temperature
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Author:
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Boronat Medico, Jordi; Fabrocini, A.; Polls Martí, Artur
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Other authors:
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Universitat de Barcelona |
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Abstract:
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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. |
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Subject(s):
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-Superfluïdesa
-Heli líquid
-Superfluidity
-Liquid helium |
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Rights:
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(c) The American Physical Society, 1989
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Document type:
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Article
Article - Published version |
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Published by:
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The American Physical Society
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