123 citations · 363 across the 10 of their papers we have counts for
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The Master Ward Identity and Generalized Schwinger-Dyson Equation in Classical Field Theory
Michael Duetsch, Klaus Fredenhagen
In the framework of perturbative quantum field theory a new, universal renormalization condition (called Master Ward Identity) was recently proposed by one of us (M.D.) in a joint…
A comment on the dual field in the AdS-CFT correspondence
M. Duetsch, K. -H. Rehren
In the perturbative AdS-CFT correspondence, the dual field whose source are the prescribed boundary values of a bulk field in the functional integral, and the boundary limit of the…
Algebraic Quantum Field Theory, Perturbation Theory, and the Loop Expansion
M. Duetsch, K. Fredenhagen
The perturbative treatment of quantum field theory is formulated within the framework of algebraic quantum field theory. We show that the algebra of interacting fields is additive,…
Deformation stability of BRST-quantization
M. Duetsch, K. Fredenhagen
To avoid the problems which are connected with the long distance behavior of perturbative gauge theories we present a local construction of the observables which does not involve t…
A local (perturbative) construction of observables in gauge theories: the example of QED
M. Duetsch, K. Fredenhagen
Interacting fields can be constructed as formal power series in the framework of causal perturbation theory. The local field algebra is obtained without…
On Gauge Invariance and Spontaneous Symmetry Breaking
Andreas Aste, Michael D"utsch, G"unter Scharf
We show how the widely used concept of spontaneous symmetry breaking can be explained in causal perturbation theory by introducing a perturbative version of quantum gauge invarianc…
Perturbative gauge invariance: the electroweak theory
Michael Dutsch, Gunter Scharf
The concept of perturbative gauge invariance formulated exclusively by means of asymptotic fields is generalized to massive gauge fields. Applying it to the electroweak theory lead…