CORRECTIONS TO FERMI-LIQUID THEORY OF CORRELATED METALS

Quasiparticle excitations of Landau-Fermi liquids can be described by a Boltzmann-Landau transport equation. We use this property to charact erize the Fermi-liquid state of correlated metals, and discuss leading corrections to standard results of Fermi-liquid theory. Our non-Fermi liquid corrections are smaller than the standard results by a factor small(D-1), where D is the dimension of the metal and small represents the expansion parameters of Fermi-liquid theory. We present, as an in structive example, results for the first-order non-Fermi liquid correc tions to Korringa's law.