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Collisions of weakly-bound kinks in the Christ-Lee model

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arxiv 2304.11710 v1 pith:RU63IQIK submitted 2023-04-23 hep-th math-phmath.MPnlin.PS

classification hep-thmath-phmath.MPnlin.PS
keywords collisionskinksmodelparametersubkinksvaluesweakly-boundanalysis
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We investigate soliton collisions a one-parameter family of scalar field theories in 1+1 dimensions which was first discussed by Christ and Lee. The models have a sextic potential with three local minima, and for suitably small values of the parameter its kinks have an internal structure in the form of two weakly-bound subkinks. We show that for these values of the parameter kink collisions are best understood as an independent sequence of collisions of these subkinks, and that a static mode analysis is not enough to explain resonant structures emerging in this model. We also emphasise the role of radiation and oscillon formation in the collision process.

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  1. Oscillons and bubbles in $Q$-ball dynamics

    hep-th 2025-09 conditional novelty 6.0 of 10

    In the thin-wall regime, Q-ball-anti-Q-ball collisions are chaotic, driven by internal bound modes and ephemeral states, with false-vacuum bubbles stabilized by Goldstone modes as key intermediates.

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