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Spectral walls in multifield kink dynamics

Adam, C. and Oles, K. and Romanczukiewicz, T. and Wereszczynski, A. and Zakrzewski, W. J. (2021) 'Spectral walls in multifield kink dynamics.', Journal of High Energy Physics, 2021 (8).


We show that spectral walls are common phenomena in the dynamics of kinks in (1+1) dimensions. They occur in models based on two or more scalar fields with a nonempty Bogomol’nyi-Prasad-Sommerfield (BPS) sector, hosting two zero modes, where they are one of the main factors governing the soliton dynamics. We also show that spectral walls appear as singularities of the dynamical vibrational moduli space.

Item Type:Article
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Publisher statement:This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:05 August 2021
Date deposited:09 November 2021
Date of first online publication:26 August 2021
Date first made open access:09 November 2021

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