| Numéro |
J. Phys. I France
Volume 6, Numéro 2, February 1996
|
|
|---|---|---|
| Page(s) | 287 - 299 | |
| DOI | https://doi.org/10.1051/jp1:1996149 | |
DOI: 10.1051/jp1:1996149
J. Phys. I France 6 (1996) 287-299
1 Dipartimento di Matematica, Università Cattolica, via Trieste 17, 25121 Brescia, Italy Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via Bassi 6, 27100 Pavia, Italy
2 Laboratoire de Physique Quantique, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, France
(Received 1 August 1995, received and accepted in final form 20 September 1995)
© Les Editions de Physique 1996
J. Phys. I France 6 (1996) 287-299
Two Interacting Particles in an Effective 2-3-d Random Potential
Fausto Borgonovi1 and Dima L. Shepelyansky21 Dipartimento di Matematica, Università Cattolica, via Trieste 17, 25121 Brescia, Italy Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via Bassi 6, 27100 Pavia, Italy
2 Laboratoire de Physique Quantique, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, France
(Received 1 August 1995, received and accepted in final form 20 September 1995)
Abstract
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.
© Les Editions de Physique 1996