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A pion decay constant in the multi-flavor Schwinger model
Jaime Fabián Nieto Castellanos, Ivan Hip, Wolfgang Bietenholz
The pion decay constant plays an important role in QCD and in Chiral Perturbation Theory. It is hardly known, however, that a corresponding constant exists in the Schwinger m…
Non-equilibrium dynamics of topological defects in the 3d O(2) model
Edgar López-Contreras, Jaime Fabián Nieto Castellanos, Elías Natanael Polanco-Euán +1
We present a study of the 3d O(2) non-linear -model on the lattice, which exhibits topological defects in the form of vortices. They tend to organize into vortex lines that bear…
An analogue to the pion decay constant in the multi-flavor Schwinger model
Jaime Fabián Nieto Castellanos, Ivan Hip, Wolfgang Bietenholz
We study the Schwinger model with degenerate fermion flavors, by means of lattice simulations. We use dynamical Wilson fermions for , and re-weigh…