Non-existence of phase-shift breathers in one-dimensional Klein-Gordon lattices with nearest-neighbor interactions

被引：7

作者：

Koukouloyannis, Vassilis ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Phys, Sect Astrophys Astron & Mech, GR-54124 Thessaloniki, Greece

来源：

PHYSICS LETTERS A | 2013年 / 377卷 / 34-36期

关键词：

DISCRETE BREATHERS; STABILITY; EXISTENCE; MULTIBREATHERS; NETWORKS; OSCILLATIONS; MODES;

D O I：

10.1016/j.physleta.2013.05.056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is well known that one-dimensional Klein-Gordon lattices with nearest-neighbor interactions can support multibreathers with phase differences between the successive "central" oscillators phi(i) = 0 or pi (standard configurations). In this Letter we prove that in this kind of systems, the standard configurations are the only possible ones, so phase-shift breathers (configurations with phi(i) not equal 0, pi)cannot be supported. This fact also determines the linear stability of the existing multibreathers. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：2022 / 2026

页数：5

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