ENVELOPE SOLITON OF THE BLOCH WAVE IN NONLINEAR PERIODIC LATTICES

被引：2
|
作者：
IIZUKA, T
机构：
[1] Department of Physics, Faculty of Science, Ehime University
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 09期
关键词：
PERIODIC SYSTEMS; BLOCH WAVE; NONLINEAR SCHRODINGER EQUATION;
D O I：
10.1143/JPSJ.64.3215
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using a recently presented theory of nonlinear periodic systems, we investigate wave propagations in anharmonic periodic lattices. If the system is linearized, it has Bloch type solutions which are regarded as an extension of the monochromatic waves. It is shown that the modulations of the Bloch wave due to the nonlinearity and the dispersion obey the nonlinear Schrodinger equation. One of the important results is that envelope soliton propagates in the periodic lattices.
引用
收藏
页码：3215 / 3225
页数：11
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