New Projection Operators for Planar Electrodynamics
arXiv:2512.12873
Abstract
In this article, we provide a new construction of a set of projection operators and apply it to obtain the propagator of three-dimensional models of electrodynamics; in particular, we consider the Maxwell-Lee-Wick-Chern-Simons, Maxwell-Deser-Jackiw electrodynamics and nonlocal infinite derivative electrodynamics. In order to prove the efficacy of these operators, we perform a causality and unitarity analysis to investigate the presence of ghosts and tachyons.
arXiv comment23 pages