Three topics in the Schwinger model
Ph. de Forcrand, J. E. Hetrick, T. Takaishi, A. J. van der Sijs
Abstract
1. We compare Monte Carlo results with analytic predictions for the fermion condensate, in the massive one-flavour Schwinger model. 2. We illustrate on the Schwinger model how to facilitate transitions between topological sectors by a simple reweighting method. 3. We discuss exact, non-perturbative improvement of the gauge sector.
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