QUANTUM DIFFUSION IN A COHERENTLY TIME-VARYING ONE-DIMENSIONAL DISORDERED SYSTEM

被引：17

作者：

YAMADA, H ^{[1
]}

IKEDA, K ^{[1
]}

GODA, M ^{[1
]}

机构：

[1] KYOTO UNIV,YUKAWA INST THEORET PHYS,KYOTO 606,JAPAN

来源：

PHYSICS LETTERS A | 1993年 / 182卷 / 01期

关键词：

D O I：

10.1016/0375-9601(93)90056-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum diffusion of an electron in a coherently time-varying one-dimensional disordered system is studied numerically by means of the symplectic integrator method. Based on the time dependence of the mean square displacement, it is found that a diffusive property is observed in our systems without any stochastically fluctuating time-varying perturbation. The diffusion constant is investigated as a function of the strength and the frequency of the coherently time-varying perturbation.

引用

页码：77 / 80

页数：4

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