Anomalous diffusion on a one-dimensional disordered system with a random noise

Authors
Tomita, I
Citation
I. Tomita, Anomalous diffusion on a one-dimensional disordered system with a random noise, PHYS LETT A, 249(5-6), 1998, pp. 501-504
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
249
Issue
5-6
Year of publication
1998
Pages
501 - 504
Database
ISI
SICI code
0375-9601(199812)249:5-6<501:ADOAOD>2.0.ZU;2-C
Abstract
Diffusion of a wave packet in one-dimensional impurity potentials with rand om noise is studied numerically by calculating the return probability and t he mean-square displacement of a wave packet. Anomalous diffusion which sat isfies the power law [x(2)](t) proportional to t(alpha) (alpha < 1) is foun d in the region where the amplitude of the noise is small compared to that of the impurity potentials. (C) 1998 Elsevier Science B.V.