Self-interaction effects on screening in three-dimensional QED

TL;DR

This paper investigates how self-interaction effects in three-dimensional quantum electrodynamics influence screening and bound state formation, providing explicit potential expressions and renormalized parameters.

Contribution

It introduces a current-current fermion coupling term that creates a potential well, leading to bound states in 3D QED, which is a novel approach.

Findings

Self-interaction effects induce bound states.

Explicit effective potential expressions are derived.

Renormalized parameters are calculated.

Abstract

We have shown that self interaction effects in massive quantum electrodynamics can lead to the formation of bound states of quark antiquark pairs. A current-current fermion coupling term is introduced, which induces a well in the potential energy profile. Explicit expressions of the effective potential and renormalized parameters are provided.