Articles written in Pramana – Journal of Physics
Volume 83 Issue 4 October 2014 pp 505-517 Research Articles
Dynamics of coupled field solitons: A collective coordinate approach
Danial Saadatmand Aliakbar Moradi Marjaneh Mahdi Heidari
In this paper we consider a class of systems of two coupled real scalar fields in bidimensional space-time, with the main motivation of studying classical stability of soliton solutions using collective coordinate approach. First, we present the class of systems of the collective coordinate equations which are derived using the presented method. After that, we follow the dynamics of the coupled fields with local inhomogeneity like a delta function potential wall as well as a delta function potential well. The results of the investigation of the two coupled fields are compared to each other and the differences are discussed. The method can predict most of the characters of the interaction.
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