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arXiv · 2209.11479

Spectral walls in antikink-kink scattering in the $\phi^6$ model

C. Adam·K. Oles·T. Romanczukiewicz·A. Wereszczynski
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Abstract

We show that thick spectral walls exist in antikink-kink collisions in the $\phi^6$ model. In this model, they are triggered by the so-called $delocalized$ $modes$ which do not exist in the single-soliton sector but emerge in antikink-kink ($\bar{K}K$) collisions. Therefore, spectral walls are a rather common phenomenon that should occur in many solitonic collisions involving non-symmetric kinks as, e.g., in the $\phi^8$ or higher power models.

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C. Adam, K. Oles, T. Romanczukiewicz, A. Wereszczynski. 2022-09-23. Spectral walls in antikink-kink scattering in the $\phi^6$ model. https://doi.org/10.1103/physrevd.106.105027

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