RANDOM-WALK ON A DISORDERED DIRECTED BETHE LATTICE

被引：1
|
作者：
ASLANGUL, C
BARTHELEMY, M
POTTIER, N
SAINTJAMES, D
机构：
[1] UNIV PARIS 07,F-75251 PARIS 05,FRANCE
[2] UNIV PARIS 06,F-75251 PARIS 05,FRANCE
[3] COLL FRANCE,PHYS STAT LAB,F-75231 PARIS 05,FRANCE
来源：
JOURNAL OF STATISTICAL PHYSICS | 1991年 / 65卷 / 3-4期
关键词：
FLUCTUATION PHENOMENA; RANDOM WALKS; DISORDERED MEDIA;
D O I：
10.1007/BF01053749
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The random walk of a particle on a directed Bethe lattice of constant coordinance Z is examined in the case of random hopping rates. As a result, the higher the coordinance, the narrower the regions of anomalous drift and diffusion. The annealed and quenched mean square dispersions are calculated in all dynamical phases. In opposition to the one-dimensional (Z = 2) case, the annealed and quenched mean quadratic dispersions are shown to be identical in all phases.
引用
收藏
页码：695 / 713
页数：19
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