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arXiv · hep-th/9602006

Theta Vacua in the Light-Cone Schwinger Model

Alex C. Kalloniatis·David G. Robertson
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Abstract

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 theta vacuum is manifested depending on this choice of gauge, and compute the theta-dependence of the chiral condensate in each case.

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Alex C. Kalloniatis, David G. Robertson. 1996-02-02. Theta Vacua in the Light-Cone Schwinger Model. https://doi.org/10.1016/0370-2693(96)00534-5

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