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Phonons in a linear chain with hard-core potentials of helium and deuterium

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Abstract

The phonon theory is formulated in terms of transfer functions, which are solutions of the transfer integral equation. Since these functions already implicitly contain the effects of anharmonicities and of the hard core, no further difficulties occur from these properties of the potential. The only assumption to be made is a Hartree-Jastrow form of the wave functions, where the Jastrow factors describe both short- and long-range correlations. Numerical results are given for Lennard-Jones potentials with data from helium and deuterium.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Giessen, Heinrich-Buff-Ring, Giessen, Federal Republic of Germany

    Franz G. Mertens

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  1. Franz G. Mertens
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Mertens, F.G. Phonons in a linear chain with hard-core potentials of helium and deuterium. J Low Temp Phys 25, 619–635 (1976). https://doi.org/10.1007/BF00657287

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  • DOI: https://doi.org/10.1007/BF00657287

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