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math-ph2024
Feynman integral in QFT and white noise
Jaroslaw Wawrzycki
We present a rigorous construction of the Feynman integral on the compactified Einstein Universe (EU) using white noise calculus. Presented construction of the functional averaging…
math-ph2024
Causal perturbative QED and white noise
Jaroslaw Wawrzycki
We present the Bogoliubov's causal perturbative QFT, which includes only one refinement: the creation-annihilation operators at a point, \emph{i.e.} for a specific momentum, are ma…