SCALING OF QUANTUM DIFFUSION IN ONE-DIMENSIONAL DISORDERED-SYSTEMS

被引：5

作者：

YAMADA, H

GODA, M

AIZAWA, Y

SANO, M

机构：

[1] WASEDA UNIV,DEPT APPL PHYS,SHINJU KU,TOKYO 169,JAPAN

[2] TOKYO INST TECHNOL,FAC SCI,MEGURO KU,TOKYO 152,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1992年 / 61卷 / 09期

关键词：

DISORDERED SYSTEM; LONG-RANGE CORRELATION; QUANTUM DIFFUSION; SCALING; UNIVERSALITY; ONE DIMENSION; POWER LAW; LOCALIZATION;

D O I：

10.1143/JPSJ.61.3050

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dynamics of an electron in a tightly binding one-dimensional disordered system is studied numerically. The time evolution of wavepackets is traced by the time-dependent Schrodinger equation. The mean square displacement of the packet scaled by the localization length shows a universal time evolution from the ballistic regime to the localized regime in an ordinary disordered system. The time evolution in the modified Bernoulli systems with long-range structural correlation also shows the same universal diffusion.

引用

页码：3050 / 3053

页数：4

共 50 条

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