Feynman Diagrams and Wick Products Associated with $q$-Fock spaces

Abstract

It is shown that if one keeps track of crossings, Feynman diagrams can be used to compute $q$-Wick products and normal products in terms of each other.

References in corpus (3)

• Renormalization in quantum field theory and the Riemann-Hilbert problem II: the $\beta$-function, diffeomorphisms and the renormalization group
• $q$-Gaussian processes: non-commutative and classical aspects
• Runge-Kutta methods and renormalization

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• Riesz transforms, Hodge-Dirac operators and functional calculus for multipliers I
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