From Screening to Confinement in a Gauge-Invariant Formalism
Patricio Gaete, Iv\'an Schmidt
TL;DR
This paper reviews screening and confinement phenomena in two-dimensional QED using a gauge-invariant, path-dependent formalism that simplifies understanding the electromagnetic dressing around static fermions.
Contribution
It introduces and applies a gauge-invariant, path-dependent formalism to analyze screening and confinement in QED2, offering a straightforward approach.
Findings
Clarifies the structure of electromagnetic dressing around static charges
Provides insights into confinement mechanisms in QED2
Demonstrates the effectiveness of gauge-invariant formalism
Abstract
Features of screening and confinement are reviewed in two-dimensional quantum electrodynamics (QED2). Our discussion is carried out using the gauge-invariant but path-dependent variables formalism. This alternative and useful approach exploits the rich structure of the electromagnetic cloud or dressing around static fermions in a straightforward and simple way.
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