Multi-kink scattering in the double sine-Gordon model

Abstract

We study collisions of two, three, and four kinks of the double sine-Gordon model. The initial conditions are taken in a special form in order to provide collision of all kinks in one point. We obtain dependences of the maximal energy densities on the model parameter. We also analyze the final states observed in these collisions.

arXiv comment24 pages, 12 figures; v2: figures, discussion and references added; matches the published version

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