Origin of multikinks in dispersive nonlinear systems

被引:23
作者
Champneys, A [1 ]
Kivshar, YS
机构
[1] Univ Bristol, Dept Engn Math, Bristol BS8 1TR, Avon, England
[2] Australian Natl Univ, Ctr Opt Sci, Canberra, ACT 0200, Australia
关键词
D O I
10.1103/PhysRevE.61.2551
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 develop the analytical theory of multikinks for strongly dispersive nonlinear systems, considering the examples of the weakly discrete sine-Gordon model and the generalized Frenkel-Kontorova model with a piecewise parabolic potential. We reveal that there are no 2 pi kinks for this model, but there exist discrete sets of 2 pi N kinks for all N>1. We also show their bifurcation structure in driven damped systems.
引用
收藏
页码:2551 / 2554
页数:4
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