LEVY STATISTICS IN A HAMILTONIAN SYSTEM

被引：178

作者：

KLAFTER, J ^{[1
]}

ZUMOFEN, G ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW E | 1994年 / 49卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.49.4873

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Enhanced diffusion in a Hamiltonian system is studied in terms of the continuous-time random walk formulation for Levy walks. The previous Levy-walk scheme is extended (i) to include interruptions by periods of temporal localization and (ii) to describe motion in two dimensions. We analyze a case of conservative motion in a two-dimensional periodic potential. Numerical calculations of the mean-squared displacements and the propagators for intermediate energies are consistent with the Levy-walk description.

引用

页码：4873 / 4877

页数：5

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