Effects of Anisotropy in (2+1)-dimensional QED
Abstract
We summarize our results for the impact of anisotropic fermionic velocities in (2+1)-dimensional QED on the critical number of fermion flavors, Ncf, and dynamical mass generation. We apply different approximation schemes for the gauge boson vacuum polarization and the fermion-boson vertex to analyze the according Dyson-Schwinger equations in a finite volume. Our results point towards large variations of Ncf away from the isotropic point in agreement with other approaches.
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