NON-BROWNIAN TRANSPORT IN COMPLEX-SYSTEMS

被引：43

作者：

KLAFTER, J

ZUMOFEN, G

BLUMEN, A

机构：

[1] SWISS FED INST TECHNOL, PHYS CHEM LAB, CH-8092 ZURICH, SWITZERLAND

[2] UNIV FREIBURG, W-7800 FREIBURG, GERMANY

来源：

CHEMICAL PHYSICS | 1993年 / 177卷 / 03期

关键词：

D O I：

10.1016/0301-0104(93)85044-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we review some approaches that lead to deviations from the well known Brownian motion. We focus on the less explored enhanced diffusion for which the mean-squared displacement is superlinear in time. Such a behavior appears to be generic in various nonlinear Hamiltonian systems. We discuss the Levy walk scheme that gives rise to such enhancement and calculate the corresponding propagators. An application to a family of one-dimensional maps is presented.

引用

页码：821 / 829

页数：9

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