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
收藏
页码：77 / 80
页数：4
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