29 citations · 51 across the 2 of their papers we have counts for
4 papers
Dimensional Regularization in Position Space, and a Forest Formula for Epstein-Glaser Renormalization
Michael Duetsch, Klaus Fredenhagen, Kai Johannes Keller +1
We reformulate dimensional regularization as a regularization method in position space and show that it can be used to give a closed expression for the renormalized time-ordered pr…
Dimensional Regularization in Position Space and a Forest Formula for Regularized Epstein-Glaser Renormalization
Kai Johannes Keller
The present work contains a consistent formulation of the methods of dimensional regularization (DimReg) and minimal subtraction (MS) in Minkowski position space. The methods are i…
Euclidean Epstein-Glaser Renormalization
Kai Johannes Keller
In the framework of perturbative Algebraic Quantum Field Theory (pAQFT), recently introduced by Brunetti, Duetsch and Fredenhagen, I give a general construction of so-called "Eucli…
On the realization of Symmetries in Quantum Mechanics
Kai Johannes Keller, Nikolaos A. Papadopoulos, Andrés F. Reyes-Lega
The aim of this paper is to give a simple, geometric proof of Wigner's theorem on the realization of symmetries in quantum mechanics that clarifies its relation to projective geome…