Quantum theory of the interactions of charged particles with the electromagnetic field. It describes the interactions of light with matter as well as those of charged particles with each other. Its foundations were laid by P. A. M. Dirac when he discovered an equation describing the motion and spin of electrons that incorporated both quantum mechanics and the theory of special relativity. The theory, as refined and developed in the late 1940s, rests on the idea that charged particles interact by emitting and absorbing photons. It has become a model for other quantum field theories.
Event: quantum electrodynamics
Keywords: quantum electrodynamics
A relativistic quantum-mechanical theory of ELECTROMAGNETIC INTERACTIONS . QED's descriptions of the photon-mediated electromagnetic...
Theory that brings quantum mechanics and special relativity together to account for subatomic phenomena. In particular, the interactions of subatom
(QED), quantum field theory that describes the properties of electromagnetic radiation and its interaction with electrically charged matter in the fr