4 citations · 11 across the 12 of their papers we have counts for
10 papers · 1 filter
Nontrivial models with indefinite metric
S. Albeverio, H. Gottschalk
The non perturbative construction of quantum field models with nontrivial scattering in arbitrary dimension of the underlying Minkowski space-time is much more simple in the fr…
Representing Euclidean quantum fields as scaling limit of particle systems
S. Albeverio, H. Gottschalk, M. -w. Yoshida
We give a new representation of Euclidean quantum fields as scaling limits of systems of interacting, continuous, classical particles in the grand canonical ensemble.
Feynman graphs for non-Gaussian measures
S. H. Djah, H. Gottschalk, H. Ouerdiane
Partition- and moment functions for a general (not necessarily Gaussian) functional measure that is perturbed by a Gibbs factor are calculated using generalized Feynman graphs. Fro…
Convoluted generalized white noise, Schwinger functions and their continuation to Wightman functions
S. Albeverio, H. Gottschalk, J. -L. Wu
We construct Euclidean random fields over , by convoluting generalized white noise with some integral kernels , as . We study properties of Schwinger (or m…
Wick rotation for holomorphic random fields
H. Gottschalk
Random field with paths given as restrictions of holomorphic functions to Euclidean space-time can be Wick-rotated by pathwise analytic continuation. Euclidean symmetries of the co…
Particle systems with weakly attractive interaction
H. Gottschalk
Systems of classical continuous particles in the grand canonical ensemble interacting through purely attractive, yet stable, interactions are defined. By a lattice approximation, F…