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Dynamics of coupled field solitons: A collective coordinate approach

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Abstract

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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Acknowledgement

DS and AM would like to thank K Javidan for his useful discussions. This work is supported by Islamic Azad University of Quchan under grant.

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Correspondence to ALIAKBAR MORADI MARJANEH.

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SAADATMAND, D., MARJANEH, A.M. & HEIDARI, M. Dynamics of coupled field solitons: A collective coordinate approach. Pramana - J Phys 83, 505–517 (2014). https://doi.org/10.1007/s12043-014-0797-3

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