Statistics of Hartree-Fock levels in small disordered systems
Statistics of Hartree-Fock levels in small disordered systems
We study the statistics of quasiparticle and quasihole levels in small interacting disordered systems within the Hartree-Fock approximation. The distribution of the inverse compressibility, given according to Koopmans' theorem by the distance between the two levels across the Fermi energy, evolves from a Wigner distribution in the noninteracting limit to …