Anomalous diffusion properties of wave packets on quasiperiodic chains

被引：114

作者：

Piechon, F

机构：

[1] UNIV TOULOUSE 3,PHYS QUANT LAB,F-31062 TOULOUSE,FRANCE

[2] UNIV PARIS 11,PHYS SOLIDES LAB,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.76.4372

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a perturbative limit, we derive the diffusion properties of initially localized wave packets on the Fibonacci chain. We establish a new relation between generalized diffusion exponents and fractal dimensions of the energy spectrum. We give an argument extending in general to other one dimensional quasiperiodic systems. An illustration is given taking the case of the Harper model.

引用

页码：4372 / 4375

页数：4