LOCALIZATION AND DEPHASING EFFECTS IN A TIME-DEPENDENT ANDERSON HAMILTONIAN

被引：35

作者：

EVENSKY, DA ^{[1
]}

SCALETTAR, RT ^{[1
]}

WOLYNES, PG ^{[1
]}

机构：

[1] UNIV ILLINOIS,SCH CHEM SCI,URBANA,IL 61801

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 03期

关键词：

D O I：

10.1021/j100366a027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we study a generalization of the Anderson model of localization which includes time-dependent on-site randomness to elucidate the interplay between dephasing and localization. We find, in agreement with recent approximate treatments, that the inclusion of dephasing initially increases diffusion away from a localized state but then eventually inhibits spatial spreading of the wave function. For a delocalized state, dephasing can either monotonically decrease the diffusion rate or produce a weak maximum. © 1990 American Chemical Society.

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页码：1149 / 1154

页数：6

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