OBSERVATIONS OF LOCALIZED STRUCTURES IN NONLINEAR LATTICES - DOMAIN-WALLS AND KINKS

被引：178

作者：

DENARDO, B ^{[1
]}

GALVIN, B ^{[1
]}

GREENFIELD, A ^{[1
]}

LARRAZA, A ^{[1
]}

PUTTERMAN, S ^{[1
]}

WRIGHT, W ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.68.1730

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Steady-state domain walls and kinks have been observed in one-dimensional nonlinear lattices that are damped and parametrically driven. These states are localized robust transition regions between two extended standing-wave domains of definite wave number. The observations are made in an experimental lattice of coupled pendulums and in simplified numerical models. A nonlinear Schrodinger theory is developed for kinks in the upper cutoff mode. There is currently no theory for the domain walls and noncutoff kinks, which are fundamentally new localized structures.

引用

页码：1730 / 1733

页数：4