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4 papers · 2 filters
Critical behavior of the (2+1)-dimensional Thirring model
Lukas Janssen, Holger Gies
We investigate chiral symmetry breaking in the (2+1)-dimensional Thirring model as a function of the coupling as well as the Dirac flavor number Nf with the aid of the functional r…
Renormalization of the Nonlinear O(3) Model with Theta-Term
Raphael Flore
The renormalization of the topological term in the two-dimensional nonlinear O(3) model is studied by means of the Functional Renormalization Group. By considering the topological…
Two- and three-point functions in two-dimensional Landau-gauge Yang-Mills theory: Continuum results
Markus Q. Huber, Axel Maas, Lorenz von Smekal
We investigate the Dyson-Schwinger equations for the gluon and ghost propagators and the ghost-gluon vertex of Landau-gauge gluodynamics in two dimensions. While this simplifies so…
(Non-)Aligned gauges and global gauge symmetry breaking
Axel Maas
The concept of (global) gauge symmetry breaking plays an important role in many areas of physics. Since the corresponding symmetry is a gauge symmetry, its breaking is actually gau…