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Landau parameters and thermodynamic properties of liquid helium II

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Abstract

The variation of the Landau parameters with density and hard-core diameter is calculated for liquid helium using interparticle potentials composed of a hard core followed by a combination of a repulsive and an attractive Gaussian potential, and a hard core followed by a Lennard-Jones potential. Calculations are done only for high-density boson systems. The calculations of specific heat and entropy show good agreement with the experimental results in the very low-temperature region (T<1.0 K) and for the Gaussian potential only.

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Author notes

  1. K. M. Khanna

    Present address: Department of Materials Science, National Institute of Foundry and Forge Technology, Hatai-Ranchi, India

Authors and Affiliations

  1. International Centre for Theoretical Physics, Trieste, Italy

    K. M. Khanna

  2. Department of Materials Science, National Institute of Foundry and Forge Technology, Hatia-Ranchi, India

    S. Chauba Singh

Authors
  1. K. M. Khanna
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  2. S. Chauba Singh
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Khanna, K.M., Chauba Singh, S. Landau parameters and thermodynamic properties of liquid helium II. J Low Temp Phys 60, 395–403 (1985). https://doi.org/10.1007/BF00681664

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  • DOI: https://doi.org/10.1007/BF00681664

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