QUENCHED DISORDER ENHANCES CHAOTIC DIFFUSION

Authors
POPESCU MN BRAIMAN Y FAMILY F HENTSCHEL HGE
Citation
Mn. Popescu et al., QUENCHED DISORDER ENHANCES CHAOTIC DIFFUSION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 58(4), 1998, pp. 4057-4059
Citations number
20
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
58
Issue
4
Year of publication
1998
Pages
4057 - 4059
Database
ISI
SICI code
1063-651X(1998)58:4<4057:QDECD>2.0.ZU;2-J
Abstract
We show that chaotic diffusion of a single particle moving on a one-di mensional rough surface is enhanced by a small amount of spatial quenc hed disorder. In addition to enhanced diffusion we also find that ther e is a crossover from expanding to bounded motion. The crossover time to bounded motion decreases with increasing disorder, and there exists a threshold value of disorder above which chaotic motion is completel y suppressed. [S1063-651X(98)50210-3].