DIRECTED WAVE-PROPAGATION IN RANDOM-MEDIA - SUPERDIFFUSION AND PHASE-TRANSITION

被引：39

作者：

FENG, SH

GOLUBOVIC, L

ZHANG, YC

机构：

[1] UNIV CALIF LOS ANGELES,CTR SOLID STATE SCI,LOS ANGELES,CA 90024

[2] UNIV ROME,IST NAZL FIS NUCL,DIPARTIMENTO FIS,I-00185 ROME,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.65.1028

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a class of classical wave-propagation phenomena in which a multiply scattered wave in a random medium is directed along a certian spatial direction. Such a situation arises in the random scattering systems in which the scattering potential is slowly varying in the z direction. In 2D, we find a superdiffusive transverse displacement of the center of the transmitted beam 14, while the width of the beam scales as with 12. In 3D, we find a transition: for weak disorder, while v0.46 and v0.66 for strong disorder. 1990 The American Physical Society © 1990 The American Physical Society.

引用

页码：1028 / 1031

页数：4

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