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arXiv · 2504.19686

Four-Fermion Deformations on Line Defects in QED$_4$ with Yukawas

Alessandra D'Alise·Giulia Muco·Francesco Sannino
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Abstract

We elucidate the dynamics induced by a Wilson Line of charge $q$ and electron charge $e$ in $QED_4$ coupled to a real scalar via Yukawa interactions. We observe that there is a range of the fixed product $e^2 q$ with $e\rightarrow 0$ and $q\rightarrow \infty$ for which four-fermion operators play a dominant role for the dynamics of the theory. We uncover the fixed-point dynamics of the theory and analyze their critical behavior.

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Alessandra D'Alise, Giulia Muco, Francesco Sannino. 2025-04-28. Four-Fermion Deformations on Line Defects in QED$_4$ with Yukawas. https://arxiv.org/abs/2504.19686

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