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Spectral walls in multifield kink dynamics

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arxiv 2105.14771 v2 pith:7UED343D submitted 2021-05-31 hep-th math-phmath.MPnlin.PS

Spectral walls in multifield kink dynamics

C. Adam , K. Oles , T. Romanczukiewicz , A. Wereszczynski , W. Zakrzewski This is my paper
classification hep-th math-phmath.MPnlin.PS
keywords dynamicsspectralwallstheyappearbogomolcommondimensions
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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-Prasam-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.

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  1. Compact structures in impurity-doped vacuumless systems

    hep-th 2026-05 unverdicted novelty 5.0

    Impurities preserving half the BPS sectors induce compact or half-compact stable vacuumless kinks in scalar models, which cannot form in impurity-free canonical cases.