Theta Vacua in the Light-Cone Schwinger Model

Details Theta Vacua in the Light-Cone Schwinger Model Theta Vacua in the Light-Cone Schwinger Model

1996-02-02

arxiv.org/abs/hep-th/9602006v1

Phys.Lett. B381 (1996) 209-215

Physics

High Energy Physics

High Energy Physics - Theory

RevTeX, 5 pages

Scientific paper

10.1016/0370-2693(96)00534-5

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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