Reference: Answer from Barak Shoshany at What is quantum field theory? I loved the answer from Barak Shoshany. My understanding of Quantum Field Theory is developing as follows. (1)    A “particle” is a high frequency pulse in a low-frequency background field. We may refer to the low-frequency field as the corresponding “space”. (2)    Movement of a “particle” … Continue reading What is Quantum Field Theory?