Two Interacting Particles in an Effective 2-3-d Random Potential

Fausto Borgonovi , Dima Shepelyansky

We study the effect of coherent propagation of two interacting particles in an effective 2-3-d disordered potential. Our numerical data demonstrate that in dimension d>2, interaction can lead to two-particles delocalization below one-particle delocalization border. We also find that the distance between the two delocalized particles (pair size) grows logarithmically with time. As a result pair propagation is subdiffusive.

Domaines: Articles anciens

Fausto Borgonovi, Dima Shepelyansky. Two Interacting Particles in an Effective 2-3-d Random Potential. Journal de Physique I, 1996, 6 (2), pp.287-299. ⟨10.1051/jp1:1996149⟩. ⟨jpa-00247185⟩