Dyon loops and Abelian instantons
Abstract
A bstract We construct Abelian gauge field configurations that carry non-zero instanton number. Each such “Abelian instanton” is generated by a closed magnetic worldline in four-dimensional Euclidean space, provided the Abelian gauge field has non-trivial winding along the closed worldline. The resulting field configuration corresponds to a Euclidean dyon loop featuring non-zero instanton number. We embed these dyon loops in a UV-complete theory using the Georgi-Glashow model and show that the full instanton charge is borne entirely by the unbroken U(1) sector. In this same model, using a numerical relaxation procedure, we show that Euclidean dyon loops are a continuous deformation of small BPST instantons.
Fields of Study & Subjects
Black Holes and Theoretical Physics
High-Energy Particle Collisions Research
Quantum Chromodynamics and Particle Interactions
Publication details
- Journal / source
- Journal of High Energy Physics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 2026
- Issue
- 5
- Publication date
- 21 May 2026
- Language
- EN