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Physics Letters B




High Energy Physics, Bosonized Schwinger Model, Light-Cone Quantization, Coulomb Gauge, Weyl Gauge


We discuss the bosonized Schwinger model in light-cone quantization, using discretization as an infrared regulator. We consider both the light-cone Coulomb gauge, in which all gauge freedom can be removed and a physical Hilbert space employed, and the light-cone Weyl (temporal) gauge, in which the Hilbert space is unphysical and a Gauss law operator is used to select a physical subspace. We describe the different ways in which the θ vacuum is manifested depending on this choice of gauge, and compute the θ-dependence of the chiral condensate in each case.

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Original Citation

Kalloniatis, A.C. & Robertson, D.G. (1996). θ vacua in the light-cone Schwinger model. Physics Letters B, 381(1-3), 209-215. DOI: 10.1016/0370-2693(96)00534-5




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