Renormalization and conformal invariance of non-local quantum electrodynamics
High Energy Physics - Theory
2020-08-26 v1 Strongly Correlated Electrons
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.
Keywords
Cite
@article{arxiv.2003.07895,
title = {Renormalization and conformal invariance of non-local quantum electrodynamics},
author = {Matthew Heydeman and Christian B. Jepsen and Ziming Ji and Amos Yarom},
journal= {arXiv preprint arXiv:2003.07895},
year = {2020}
}
Comments
39 pages, 1 figure