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Ground state properties of boson-mixtures

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Zeitschrift für Physik B Condensed Matter

Abstract

The ground state of a binary boson mixture is represented by a spatially correlated Jastrow wave function and is optimally determined by minimizing the associated energy expectation value within hypernetted chain theory. We study formally the corresponding chemical potentials, volume coefficients, condensate densities, the exchange strength as well as the correlations between density — and concentration fluctuations, the momentum distributions and the exchange correlations associated with the Jastrow ground state. The formalism is specialized for dealing with foreign atoms immersed in Bose systems and is numerically applied to3He- and ↑H-impurities in liquid4He.

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Author notes

  1. S. Fantoni

    Present address: Istituto di Fisica dell'Universitá, Pisa, Italy

  2. K. E. Kürten

    Present address: Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, 10012, New York, NY, USA

Authors and Affiliations

  1. Institut für Theoretische Physik der Universität zu Köln, Zülpicher Strasse 77, D-5000, Köln 41, Federal Republic of Germany

    M. L. Ristig, S. Fantoni & K. E. Kürten

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  1. M. L. Ristig
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  2. S. Fantoni
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  3. K. E. Kürten
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Ristig, M.L., Fantoni, S. & Kürten, K.E. Ground state properties of boson-mixtures. Z. Physik B - Condensed Matter 51, 1–9 (1983). https://doi.org/10.1007/BF01304037

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  • DOI: https://doi.org/10.1007/BF01304037

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