PERTURBATIVE ANALYSIS OF THE INTERACTION OF A PHI-4-KINK WITH INHOMOGENEITIES

被引：28

作者：

MALOMED, BA

机构：

[1] PP SHIRSHOV OCEANOL INST,MOSCOW 117218,USSR

[2] UNIV CALIF LOS ALAMOS SCI LAB,CTR NONLINEAR STUDIES,LOS ALAMOS,NM 87544

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1992年 / 25卷 / 04期

关键词：

D O I：

10.1088/0305-4470/25/4/015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dynamics of a kink in the phi(4) model with additional terms accounting for localized or spatially random inhomogeneities are analysed by means of the perturbation theory. First, conditions for the capture of the free kink by a local defect are found. Next, emission of radiation by the kink colliding with the local defect, and collision-induced generation of the kink's shape (internal) mode and the defect-sustained impurity mode are considered. Finally, the non-dissipative braking of the moving kink in a randomly inhomogeneous medium on account of the excitation of the shape mode is analysed.

引用

页码：755 / 764

页数：10

共 15 条

[1] UNIFIED APPROACH TO INTERPRETATION OF DISPLACIVE AND ORDER-DISORDER SYSTEMS .2. DISPLACIVE SYSTEMS [J].