Causal Lie products of free fields and the emergence of quantum field theory
arXiv:2204.00225 · doi:10.1007/s10701-022-00629-y
Abstract
All causal Lie products of solutions of the Klein-Gordon equation and the wave equation in Minkowski space are determined. The results shed light on the origin of the algebraic structures underlying quantum field theory.
7 pages, 1 figure v2: appendix added, version as to appear in Found. Phys. (2022) 52:108