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- W2138992258 abstract "Functional differentiation of the Brueckner-theory equations gives a prescription for calculating the effective interaction in a Fermi liquid. The many terms that result from the differentiation are calculated for the liquid-${mathrm{He}}^{3}$ system using O{}stgaard's reaction matrices. ${mathrm{He}}^{3}$ is strongly interacting in the sense that the defect wave-function probability $ensuremath{kappa}$ is large, of the order 0.56. As a result, many of the terms contribute substantially to the total. Of the Landau parameters ${f}_{0}$, ${f}_{1}$, and ${z}_{0}$, only ${z}_{0}$ is in reasonable agreement with experiment. The parameter ${f}_{0}$ is too small. This is known to be due in part to the neglect of three-body clusters. We find a small value for ${f}_{1}$, implying that the effective mass ${m}^{*}$ is close to one. Larger effective masses could be obtained by treating low-momentum-transfer processes more carefully and by summing higher-order diagrams." @default.
- W2138992258 created "2016-06-24" @default.
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- W2138992258 date "1969-08-05" @default.
- W2138992258 modified "2023-10-14" @default.
- W2138992258 title "Fermi-Liquid Parameters of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>He</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>in the Brueckner Theory" @default.
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- W2138992258 doi "https://doi.org/10.1103/physrev.184.187" @default.
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