Modulational instabilities and domain walls in coupled discrete nonlinear Schrodinger equations

被引：13

作者：

Rapti, Z

Trombettoni, A

Kevrekidis, PG

Frantzeskakis, DJ ^{[1
]}

Malomed, BA

Bishop, AR

机构：

[1] Univ Athens, Dept Phys, Athens, Greece

[2] Tel Aviv Univ, Fac Engn, Dept Interdisciplinary Studies, IL-69978 Tel Aviv, Israel

[3] Ist Nazl Fis Mat, I-43100 Parma, Italy

[4] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy

[5] Los Alamos Natl Lab, Ctr Nonlinear Sci, Los Alamos, NM 87545 USA

[6] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[7] Univ Massachusetts, Dept Math & Stat, Amherst, MA 01003 USA

来源：

PHYSICS LETTERS A | 2004年 / 330卷 / 1-2期

基金：

以色列科学基金会;

关键词：

D O I：

10.1016/j.physleta.2004.07.052

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider a system of two discrete nonlinear Schrodinger equations, coupled by nonlinear and linear terms. For various physically relevant cases, we derive a modulational instability criterion for plane-wave solutions. We also find and examine domain-wall solutions in the model with the linear coupling. (C) 2004 Published by Elsevier B.V.

引用

页码：95 / 106

页数：12

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