Abstract
A dynamical derivation of the evolution equations for the density matrices under influence of impurity scattering in the theory of normal Fermi liquids is given. In the kinetic region of the evolution the collision integral is derived, taking into account the interaction of the quasiparticles. In the special case, if the energy functional depends only on the density of the quasiparticles, an explicit expression for the collision integral is given. Furthermore, the response of the system to an external perturbation is determined by the interaction of the quasiparticles. The collision integral is used to solve the kinetic equation and to determine the electrical impurity conductivity of the normal Fermi liquid.
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