Coherent Propagation of Two Interacting Particles in a Random Potential
Y. Imry · Europhysics Letters (EPL) · 1995
A physical consideration is given to reinforce, interpret and generalize the result of Shepelyansky that a not too weak short-range interaction can cause correlated two-electron states to be substantially delocalized with respect to single-electron ones. A generalization of the Thouless block-scaling picture is used and its wide applicability is pointed out. A similar effect for correlated electron-hole pairs is also found. Some physical applications are briefly discussed.