Theoretical momentum distributions for liquid <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

J. W. Clark; P. M. Lam; J. G. Zabolitzky; M. L. Ristig

doi:10.1103/PhysRevB.17.1147

Theoretical momentum distributions for liquid ${}^{3}{He}$

J. W. Clark, P. M. Lam, J. G. Zabolitzky, and M. L. Ristig

Phys. Rev. B 17, 1147 – Published 1 February 1978

Abstract

Momentum distributions are presented for liquid ${}^{3}{He}$ based on ground-state trial functions of Jastrow-Slater type. The calculations are performed within the framework of the diagrammatic cluster approach of Ristig and Clark, using Zabolitzky's results for the static structure function in the Fermi hypernetted-chain approximation. Sensitivity of the depletion of the Fermi sea to the assumed two-body correlation function is studied. Comparison is made with a momentum distribution determined by Ceperley, Chester, and Kalos using a Fermi Monte Carlo procedure.

Received 29 September 1977

DOI:https://doi.org/10.1103/PhysRevB.17.1147

Authors & Affiliations

J. W. Clark^* and P. M. Lam^*

Department of Physics, Washington University, St. Louis, Missouri 63130

J. G. Zabolitzky^†,‡

Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

M. L. Ristig^§

Institut für Theoretische Physik, Universität zu Köln, 5-Köln-41, Germany

^*Research supported by the NSF under Grant No. DMR 76-14929 A01.
^†Research supported in part by the Deutsche Forschungs-gemeinschaft. Permanent address: II. Institut für Theoretische Physik, Ruhr-Universität Bochum.
^‡Research supported by the U. S. ERDA.
^§Research supported by the Deutsche Forschungsgemeinschaft under Grant No. Ri 267.

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Vol. 17, Iss. 3 — 1 February 1978

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