Linked from

The 79 pages that link to Quantum electrodynamics, each with the reason it gives.

• Hendrik CasimirNarrower topic: The electromagnetic field’s quantum behavior supplies the framework behind Casimir’s prediction.

• Luminiferous aetherRelated: It describes light through fields and quantum interactions, not mechanical waves in a material aether.

• Sin-Itiro TomonagaNarrower topic: Tomonaga’s central contribution was a covariant formulation of this theory.

• Fundamental interactionBroader topic: It gives a precise account of electromagnetic interaction at particle scales.

• NaturalnessRelated: Its renormalization history shaped debates over whether parameter sensitivity signals a problem.

• Feynman rulesBroader topic: Its electron-photon vertex and propagators give a canonical rule set.

• Electromagnetic four-potentialBroader topic: Its photon field is quantized through the electromagnetic four-potential.

• Yang–Mills existence and mass gapCompared with: Its gauge structure differs from the non-Abelian theories at the heart of the problem.

• Larmor formulaCompared with: It replaces the classical continuous-radiation picture when quantum effects matter.

• Polykarp KuschNarrower topic: Kusch’s anomaly became an early quantitative test of this theory’s radiative corrections.

• QuantizationBroader topic: It demonstrates successful quantization of the electromagnetic field.

• Ward–Takahashi identityBroader topic: Its vertex and electron propagator obey the standard Ward–Takahashi relation.

• Theodor W. HänschRelated: Hydrogen measurements provide stringent tests of its predictions.

• Willis LambNarrower topic: QED explains the shift through interactions between the electron and quantized electromagnetic fields.

• BKS theoryNarrower topic: Later theory describes radiation–matter interactions with quantum fields rather than BKS’s statistical conservation hypothesis.

• History of quantum mechanicsBroader topic: Its development in the 1940s resolved infinities and produced highly precise predictions.

• Wheeler–Feynman absorber theoryCompared with: It became the successful quantum framework for electromagnetic phenomena the classical absorber theory addresses.

• Exotic atomNarrower topic: Its corrections are needed to interpret precision exotic-atom spectra.

• Force carrierRelated: It models electromagnetic interactions through photon exchange.

• Furry's theoremNarrower topic: Furry's theorem is a selection rule within this theory's perturbative amplitudes.

• Heaviside–Lorentz unitsRelated: Its calculations commonly use rationalized Heaviside–Lorentz conventions.

• History of electromagnetic theoryRelated: It extended classical electromagnetism to account for quantum phenomena.

• History of subatomic physicsBroader topic: Its precision tests marked a major success of postwar particle theory.

• Hugh David PolitzerCompared with: Unlike QCD at short distances, its electromagnetic coupling grows slightly with energy.

• QED vacuumNarrower topic: Its fields, interactions, and energy spectrum define the state called the QED vacuum.

• Scharnhorst effectNarrower topic: The effect is derived from quantum electrodynamics corrections to photon propagation.

• Schwinger's quantum action principleRelated: Schwinger applied his formulation to derive relations in this theory.

• Shin'ichirō TomonagaNarrower topic: Tomonaga’s Nobel-recognized work provided a consistent framework for this theory.

• UntriseptiumNarrower topic: It supplies the framework for evaluating electrons in element 137’s extreme electric field.