Snowmass White Paper: The Quest to Define QFT

Mykola Dedushenko

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arXiv
2203.08053
Date
2022-03-15
Frontier
Theory Frontier (TF)
Topical groups
Submitted by
Mykola Dedushenko

Abstract

This article provides a review of the literature on rigorous definitions and constructions in Quantum Field Theory, spanning the period of seven decades. Comparing with the ideas and constructions that exist in the modern physics literature, we conclude that none of the existing systems of QFT axioms can cover all the physical situations. Therefore, it is still an outstanding open problem to formulate a complete definition of QFT. We argue that the question is of relevance for both physicists and mathematicians.