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arXiv · hep-th/0207277

The Schwinger Model and the Physical Projector: a Nonperturbative Quantization without Gauge Fixing

Gabriel Y. H. Avossevou·Jan Govaerts
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Abstract

Based on the physical projector approach, a nonpertubative quantization of the massless Schwinger model is considered which does not require any gauge fixing. The spectrum of physical states, readily identified following a diagonalization of the operator algebra, is that of a massive pseudoscalar field, namely the electric field having acquired a mass proportional to the gauge coupling constant. The physical spectrum need not be identified with confined bound fermion-antifermion pairs, an interpretation which one is otherwise led to given whatever gauge fixing procedure but which is not void of gauge fixing artefacts.

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Gabriel Y. H. Avossevou, Jan Govaerts. 2002-07-31. The Schwinger Model and the Physical Projector: a Nonperturbative Quantization without Gauge Fixing. https://doi.org/10.1142/9789812777560_0014

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