RENORMALIZATION-GROUP FOR DIFFUSION IN A RANDOM MEDIUM

被引：11

作者：

BRICMONT, J ^{[1
]}

KUPIAINEN, A ^{[1
]}

机构：

[1] RUTGERS STATE UNIV, DEPT MATH, NEW BRUNSWICK, NJ 08903 USA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.66.1689

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop a space-time renormalization-group method to study diffusion in a disordered medium. We prove rigorously that a random walk with transition probabilities given by a random matrix diffuses in a Brownian way for weak disorder if d > 2. We also show that the disorder induces polynomial decay of velocity-velocity correlations.

引用

页码：1689 / 1692

页数：4

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