Statistics of branched flow in a weak correlated random potential

被引：52

作者：

Kaplan, L ^{[1
]}

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.89.184103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent images of electron flow through a two-dimensional electron gas device show branching behavior that is reproduced in numerical simulations of motion in a correlated random potential [M. A. Topinka et al., Nature 410, 183 (2001)]. We show how such branching arises from caustics in the classical flow and find a simple scaling behavior of the branching under variation of the random potential strength. Analytic results describing statistical properties of the branching are confirmed by classical and quantum numerical tests.

引用

页数：4

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