Chinese Physics Letters, ( ISI ), Volume (33), No (12), Year (2016-12) , Pages (120502-120506)

Title : ( Interaction of Double Sine-Gordon Solitons with External Potentials: an Analytical Model )

Authors: S. Nazifkar , Kurosh Javidan , Mohsen Sarbishaei ,

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Abstract

Interaction of double sine-Gordon solitons with a space dependent potential wall as well as a potential well is investigated by employing an analytical model based on the collective coordinate approach. The potential is added to the model through a suitable nontrivial metric for the background spacetime. The model is able to predict most of the features of the soliton-potential interaction. It is shown that a soliton can pass through a potential barrier if its velocity is larger than a critical velocity which is a function of the initial soliton conditions and also characters of the potential. It is interesting that the solitons of the double sine-Gordon model can be trapped by a potential barrier and oscillate there. This situation is very important in applied physics. The soliton-well system is investigated by using the presented model. Analytical results are also compared with the results of the direct numerical solutions.

Keywords

, Double Sine-Gordon model, Solitons, collective coordinates
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@article{paperid:1062361,
author = {S. Nazifkar and Javidan, Kurosh and Sarbishaei, Mohsen},
title = {Interaction of Double Sine-Gordon Solitons with External Potentials: an Analytical Model},
journal = {Chinese Physics Letters},
year = {2016},
volume = {33},
number = {12},
month = {December},
issn = {0256-307X},
pages = {120502--120506},
numpages = {4},
keywords = {Double Sine-Gordon model; Solitons; collective coordinates},
}

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%0 Journal Article
%T Interaction of Double Sine-Gordon Solitons with External Potentials: an Analytical Model
%A S. Nazifkar
%A Javidan, Kurosh
%A Sarbishaei, Mohsen
%J Chinese Physics Letters
%@ 0256-307X
%D 2016

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