On the transport equation for electrons in solids

Abstract

In the theory of a ‘Fermi liquid’ the transport equation introduced intuitively by Landau (1956) has not so far received a fundamental justification. It is shown here that the transport equation for electrons may be integrated to give the macroscopic equations of energy and entropy balance. This serves to justify its use and also indicates the correct generalization of the theory to the non-isotropic situation of electrons in solids.