Small-amplitude solitons in a nonlocal sine-Gordon model

被引：12
|
作者：
Cunha, MD
Konotop, VV
Vazquez, L
机构：
[1] UNIV COMPLUTENSE MADRID,FAC CIENCIAS FIS,DEPT FIS TEOR,E-28040 MADRID,SPAIN
[2] UNIV MADEIRA,CTR CIENCIAS MATEMAT,P-9000 FUNCHAL,PORTUGAL
来源：
PHYSICS LETTERS A | 1996年 / 221卷 / 05期
关键词：
D O I：
10.1016/0375-9601(96)00595-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that small amplitude solitons of a nonlocal sine-Gordon model corresponding to different frequencies of the carrier wave can create coupled states. The effect is due to a change of the dispersion originated by a nonlocal nonlinearity. Within the framework of the multiscale expansion such pulses are described by a system of nonlinear Schrodinger equations which possesses coupled mode solutions in the form of running localized waves (breathers), Such breathers consist of modes with different frequencies and are characterized by two internal frequencies.
引用
收藏
页码：317 / 322
页数：6
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