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arXiv · 2308.14420

Semi-BPS sphaleron and its dynamics

A. Alonso-Izquierdo·S. Navarro-Obregón·K. Oles·J. Queiruga·T. Romanczukiewicz·A. Wereszczynski
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Abstract

We construct a simple field theory in which a sphaleron, i.e., a saddle-point particle-like solution, forms a semi-BPS state with a background defect that is an impurity. This means that there is no static force between the sphaleron and the impurity. Therefore such a sphaleron-impurity system is very much like usual BPS multi-solitons, however, still possessing an unstable direction allowing for its decay. We study dynamics of the sphaleron in such a system.

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A. Alonso-Izquierdo, S. Navarro-Obregón, K. Oles, J. Queiruga, T. Romanczukiewicz, A. Wereszczynski. 2023-08-28. Semi-BPS sphaleron and its dynamics. https://arxiv.org/abs/2308.14420

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