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Two interacting particles in an effective 2-3–d random potential

By Fausto Borgonovi


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

Year: 2008
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