Shape profile of compactlike discrete breathers in nonlinear dispersive lattice systems

被引：58

作者：

Dey, B

Eleftheriou, M

Flach, S

Tsironis, GP

机构：

[1] Univ Crete, Dept Phys, Iraklion 71003, Crete, Greece

[2] FORTH, Iraklion 71003, Crete, Greece

[3] Univ Poona, Dept Phys, Pune 411007, Maharashtra, India

[4] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW E | 2002年 / 65卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.65.017601

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We study the spatial decay profile of compactlike discrete breathers in nonlinear dispersive lattices. We show that the core region of such nonlinear localized excitations can be described by a cosinelike spatial shape while the tail region decays with a faster than exponential law, such as a superexponential one. We discuss the relation of the tail decay to properties of space-time separability.

引用

页数：4

共 13 条

[1] THE CONCEPT OF ANTIINTEGRABILITY APPLIED TO DYNAMICAL-SYSTEMS AND TO STRUCTURAL AND ELECTRONIC MODELS IN CONDENSED MATTER PHYSICS [J].