Excited States of the Cooper Problem in a Three-Dimensional Disordered System

Abstract

This work presents the study of the excited states of the Cooper problem in the three-dimensional Anderson model. It is shown that the excited pair states remain localized while their excitation energy $\Delta E$ is negative. For $\Delta E>0$ the particles are delocalized over the three-dimensional lattice.

Proceedings of the "Rencontres de Moriond 2001"; 4 pages, 4 figures