Renormalization and conformal invariance of non-local quantum electrodynamics
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Publication:2225683
DOI10.1007/JHEP08(2020)007zbMATH Open1454.81191arXiv2003.07895MaRDI QIDQ2225683
Author name not available (Why is that?)
Publication date: 10 February 2021
Published in: (Search for Journal in Brave)
Abstract: We study renormalization group flow in a non-local version of quantum electrodynamics (QED). We determine the regime in which the theory flows to a local theory in the infrared and study a possible UV completion of four-dimensional QED. In addition, we find that there exist non-local conformal theories with a one-dimensional conformal manifold and non-local deformations of QED in three dimensions that are exactly marginal. Along the way we develop methods for coupling non-local derivatives to external sources and discuss unitarity and conformal vs. scale invariance of these theories.
Full work available at URL: https://arxiv.org/abs/2003.07895
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