The effect of nonlinear parameters in one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain

被引：4

作者：

Zhou Qian ^{[1
]}

Lue Bin-Bin ^{[1
]}

Tian Qiang ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

ACTA PHYSICA SINICA | 2009年 / 58卷 / 01期

基金：

中国国家自然科学基金;

关键词：

mixed Klein-Gordon/Fermi-Pasta-Ulam chain; extended rotating plane wave approximation; discrete breathers; symmetry; INTRINSIC LOCALIZED MODES; DISCRETE BREATHERS; LATTICES; GENERATION;

D O I：

10.7498/aps.58.411

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The possible discrete breathers are obtained numerically in the system of one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain on the basis of simplified motion equations by using extended rotating plane wave approximation. Furthermore, the effect of each nonlinear parameter on the static, first-order harmonic and second-order harmonic components of the discrete breathers is investigated.

引用

页码：411 / 416

页数：6

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