Quantum Field Theory

In modern theoretical physics, quantum field theory is the framework for constructing quantum mechanical models of subatomic particles in particle physics. Here are all the Insights that have been tagged as relevant to Quantum Field Theory.

In ordinary quantum mechanics (QM), you treat particles quantum mechanically.

In quantum field theory (QFT), you treat fields quantum mechanically. It turns out that in addition to the classically known fields (like the electromagnetic field) there are new “quantum fields” for all fundamental particles (like the electron). In this sense, QFT is more fundamental than ordinary QM. The most fundamental theory up to date -the Standard Model of particle physics- is a QFT.