Electron self-trapping and self-focusing in periodic chains with a finite nonlinear response time

被引：12

作者：

de Moura, F. A. B. F. ^{[1
]}

Vidal, E. J. G. G. ^{[1
]}

Gleria, Iram ^{[1
]}

Lyra, M. L. ^{[1
]}

机构：

[1] Univ Fed Alagoas, Inst Fis, BR-57072970 Maceio, AL, Brazil

来源：

PHYSICS LETTERS A | 2010年 / 374卷 / 40期

关键词：

Anderson localization; Wave-packet dynamics; Self-focusing; Nonlinearity; Self-trapping; SCHRODINGER-EQUATION; QUANTUM DIMER; EVOLUTION; DYNAMICS; SYSTEMS;

D O I：

10.1016/j.physleta.2010.08.016

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work we investigate the one-electron wave-packet dynamics in finite closed chains with relaxational nonlinearity. We found that, besides exhibiting the well-known self-trapping regime at strong coupling, the non-instantaneous character of the nonlinearity favors the self-focusing of the wave-packet at intermediate coupling strengths. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：4152 / 4155

页数：4

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