Abstract
It is shown that the Fermi-liquid interaction and the quasiparticle scattering amplitude for an almost-localized Fermi system tend to a universal limit characterized by large values of the Landau parameters ${F}_{0}^{s}$ and ${F}_{1}^{s}$ and small values of ${F}_{0}^{a}$, ${F}_{1}^{a}$, and the higher-l components. The argument is based on the coupled integral equations for the two-particle vertex function in the particle-hole and particle-particle channels. Our results are in close agreement with those obtained earlier from Gutzwiller's solution of the Hubbard model.
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