Processes as Objects of Quantum Field Theory
Meinard Kuhlmann · 2000
The aim of this paper is to examine one of several candidates for the ontology of today’s most basic theory in physics, quantum field theory (QFT). I will begin by outlining some problems we encounter when we look at different conceptions for the basic entities to which QFT refers. The candidate ontology I wish to consider in this paper is process ontology. I shall characterize process ontology mainly in a negative manner as opposed to substance ontology. The central part will consist in a case study about how the interpretation of Feynman diagrams – the use of which is crucial in QFT – depends on whether we adhere to substance or process ontology. In conclusion I will evaluate my results and point towards some problems faced by process ontology as such.