Degenerate vortices and world-line instantons in three-dimensional gauge theories
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866910010958675968 |
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| author | Ievlev, Evgenii Shifman, Mikhail |
| author_facet | Ievlev, Evgenii Shifman, Mikhail |
| contents | In this paper we continue the study of particle-like topological solitons with degenerate masses and their mixing due to world-line instantons. Previously, this phenomenon was studied in 1+1-dimensional setups. Here we take a step further and consider degenerate vortices in 2+1 dimensions. We find that, while classically such vortices may be degenerate, they generally mix and split at the quantum level. Supersymmetry protects BPS-saturated vortices only when the number of supercharges in the bulk is large enough. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_03929 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Degenerate vortices and world-line instantons in three-dimensional gauge theories Ievlev, Evgenii Shifman, Mikhail High Energy Physics - Theory In this paper we continue the study of particle-like topological solitons with degenerate masses and their mixing due to world-line instantons. Previously, this phenomenon was studied in 1+1-dimensional setups. Here we take a step further and consider degenerate vortices in 2+1 dimensions. We find that, while classically such vortices may be degenerate, they generally mix and split at the quantum level. Supersymmetry protects BPS-saturated vortices only when the number of supercharges in the bulk is large enough. |
| title | Degenerate vortices and world-line instantons in three-dimensional gauge theories |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2602.03929 |