Soliton structure dynamics in inhomogeneous media

被引：2
|
作者：
Guerrero, LE
Bellorin, A
Gonzalez, JA
机构：
[1] Univ Simon Bolivar, Dept Fis, Caracas 1080A, Venezuela
[2] Cent Univ Venezuela, Fac Ciencias, Dept Fis, Caracas 1041A, Venezuela
[3] Inst Venezolano Invest Cient, Ctr Fis, Caracas 1020A, Venezuela
来源：
PHYSICA A | 1998年 / 260卷 / 3-4期
关键词：
solitons; inhomogeneous media; chaos;
D O I：
10.1016/S0378-4371(98)00331-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show that soliton interaction with finite-width inhomogeneities can activate a great number of soliton internal modes. We obtain the exact stationary soliton solution in the presence of inhomogeneities and solve exactly the stability problem. We present a Karhunen-Loeve analysis of the soliton structure dynamics as a time-dependent force pumps energy into the translational mode of the kink. We show the importance of the internal modes of the soliton as they can generate shape chaos for the soliton as well as cases in which the first shape mode leads the dynamics. (C) 1998 Elsevier Science B.V. All rights reserved. PACS: 02.30.Jr; 05.45.+b; 52.35.h iw; 52.35.Sb.
引用
收藏
页码：418 / 424
页数：7
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