期刊
BRAZILIAN JOURNAL OF PHYSICS
卷 40, 期 1, 页码 102-107出版社
SPRINGER
DOI: 10.1590/S0103-97332010000100014
关键词
Topological solitons; Double sine-Gordon; Collective coordinate
Collective coordinate analysis for adding a space dependent potential to the double sine-Gordon model is presented. Interaction of solitons with a delta function potential barrier and also delta function potential well is investigated. Most of the features of interaction are derived analytically. We will find that the behaviour of a solitonic solution is like a point particle which moves under the influence of a complicated effective potential. The effective potential is a function of the field initial conditions and also parameters of added external potential.
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