Quantum Electrodynamics

The relativistic quantum field theory of electrodynamics — how light and matter interact — and the most precisely tested physical theory.

Specifications & Metrics

The relativistic quantum field theory of electrodynamics, describing how light and matter interact.
The first theory where full agreement between quantum mechanics and special relativity was achieved.
Its prediction of the electron's anomalous magnetic moment is among the most precisely tested results in physics.