NUMERICAL INVESTIGATION OF A NONLOCAL SINE-GORDON MODEL

被引：27

作者：

VAZQUEZ, L

EVANS, WAB

RICKAYZEN, G

机构：

[1] UNIV KENT,PHYS LAB,CANTERBURY CT2 7NR,KENT,ENGLAND

[2] UNIV COMPLUTENSE,FAC CIENCIAS FIS,DEPT FIS TEOR,E-28040 MADRID,SPAIN

来源：

PHYSICS LETTERS A | 1994年 / 189卷 / 06期

关键词：

D O I：

10.1016/0375-9601(94)91209-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A conservative, non-local generalisation of the sine-Gordon equation is postulated and its kink solutions are numerically investigated by integral equation methods. It is found that, as a consequence of non-locality, the usual kink solutions of topological charge 1 attract each other forming dynamically stable multi-twist kinks of odd parity. Further, novel solutions, of topological charge 0, were also found to exist at adequately large non-locality.

引用

页码：454 / 459

页数：6