INTERFACE FLUCTUATIONS IN RANDOM-MEDIA

被引：110

作者：

KESSLER, DA

LEVINE, H

TU, YH

机构：

[1] UNIV CALIF SAN DIEGO, DEPT PHYS, LA JOLLA, CA 92093 USA

[2] UNIV CALIF SAN DIEGO, INST NONLINEAR SCI, LA JOLLA, CA 92093 USA

来源：

PHYSICAL REVIEW A | 1991年 / 43卷 / 08期

关键词：

D O I：

10.1103/PhysRevA.43.4551

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study a stochastic model of an interface moving through a random medium. This model differs from the standard Kardar-Parisi-Zhang equation by the fact that the fluctuations are quenched random variables. We find an intermediate scaling regime with roughness exponent approximately equal to 0.75; this compares favorably with recent experiments [M. A. Rubio, C. A. Edwards, A. Dougherty, and J. P. Gollub, Phys. Rev. Lett. 63, 1685 (1989)] on multiphase flow through a bead pack.

引用

页码：4551 / 4554

页数：4

共 11 条

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