physics, mathematical physics, philosophy of physics theory (physics), model (physics) experiment, measurement, computable physics Axiomatizations Tools Structural phenomena Types of quantum field thories examples An ordinary gauge field (such as the electromagnetic field or the fields that induce the nuclear force) is a field (in the sense of physics) which is locally represented by a differential 1-form (the “gauge potential”) and whose field strength is locally a differential 2-form. For...