Landau theory of the Fermi-liquid to electron-glass transition

A lattice model of spinless interacting electrons is used to formulate the Landau theory of the Fermi liquid to electron-glass quantum phase transition. We demonstrate that the presence of additional random site energies does not affect the character of the transition, once the replica symmetry breaking is considered self-consistently at the mean-field level. Inside the glass phase, the low temperature conductivity assumes a non-Fermi liquid deltasigmasimilar toT(3/2) form, in agreement with recent experiments.