Semi-Bogomol'nyi-Prasad-Sommerfield sphaleron and its dynamics.
basic_science · Level V
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- Record sourced from PubMed, PMID 38243486.
- Also identified by DOI 10.1103/PhysRevE.108.064208.
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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 multisolitons, however, still possessing an unstable direction allowing for its decay. We study dynamics of the sphaleron in such a system.