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.
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页码：4551 / 4554
页数：4
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