Gauge Dependence and Dyson-Schwinger Equations


For gauge theories in particular we want to clarify the interplay between quantization and gauge fixing in covariant gauges and the structure of (systems of) Dyson–Schwinger equations (DSE). We want to investigate this in the context of higher dimensional scalar field and gauge theories and for different renormalization schemes. We focus on Wilson–Fisher fixed points at which the systems of DSEs become linear and hence scaling is reinstalled. This gives a possibility to classify the resulting sub-Hopf algebras, and we look forward to see if such an algebraic classification allows for a resulting classification of the underlying quantum field theories near and at their fixed point conformal limit.


Principal Investigators
Kreimer, Dirk Prof. (Details) (Theoretical Physics / Mathematical Physics)

participating organizational facilities of the HU

Duration of Project
Start date: 10/2017
End date: 12/2019

Research Areas
Mathematics, Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields, Particles, Nuclei and Fields

Research Areas
Theoretische Physik

Last updated on 2021-11-08 at 13:08