Gauge-invariant bilocals and the Schwinger model
Abstract
Starting from the gauge-invariant bilocal object ψ̅(y)Γexp (-ie∫xy Aμdzμ) ψ(x), we derive the "physical" propagating scalar field of mass eπ-1/2 in the Schwinger model. This is done by using the quantum operator equations of motion and taking the limit x 🡒 y.
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