quantum electrodynamics

E37418
gauge theory physical theory quantum field theory relativistic quantum theory

Quantum electrodynamics is the quantum field theory that describes how light and matter interact through the exchange of photons, forming the foundation of our understanding of electromagnetic forces at the subatomic level.

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Observed surface forms (1)

Surface form Occurrences
QED (quantum electrodynamics) theory 1

Statements (50)

Predicate Object
instanceOf gauge theory ⓘ
physical theory ⓘ
quantum field theory ⓘ
relativistic quantum theory ⓘ
appliesTo subatomic scale ⓘ
awardedNobelPrizeTo Julian Schwinger ⓘ
Richard Feynman ⓘ
Sin-Itiro Tomonaga ⓘ
basedOn quantum mechanics ⓘ
special relativity ⓘ
contrastsWith classical electrodynamics ⓘ
describesForce electromagnetic interaction ⓘ
describesInteraction light ⓘ
matter ⓘ
developedBy Freeman Dyson ⓘ
Julian Schwinger ⓘ
Richard Feynman ⓘ
Sin-Itiro Tomonaga ⓘ
explains interaction of charged particles via photon exchange ⓘ
fieldOfStudy particle physics ⓘ
quantum physics ⓘ
theoretical physics ⓘ
formulatedWith Dirac equation ⓘ
frameworkFor radiative corrections ⓘ
scattering amplitudes ⓘ
hasCouplingConstant fine-structure constant ⓘ
hasGaugeGroup U(1) ⓘ
historicalPrecursor Dirac equation ⓘ
surface form: Dirac theory of the electron
isPartOf Standard Model ⓘ
surface form: Standard Model of particle physics
mediatedBy photon ⓘ
notableFor high-precision agreement with experiment ⓘ
predicts Bhabha scattering ⓘ
Compton effect ⓘ
surface form: Compton scattering

Lamb shift ⓘ
Møller scattering ⓘ
anomalous magnetic moment of the electron ⓘ
electron–positron annihilation ⓘ
pair production ⓘ
running of the fine-structure constant ⓘ
vacuum polarization ⓘ
quantizes electromagnetic field ⓘ
treatsParticle electron ⓘ
photon ⓘ
positron ⓘ
usesConcept Feynman diagrams ⓘ
surface form: Feynman diagram

gauge invariance ⓘ
path integral formulation ⓘ
perturbation theory ⓘ
renormalization ⓘ
virtual particle ⓘ

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Klein–Nishina formula → field → quantum electrodynamics ⓘ
Paul Dirac → notableWork → quantum electrodynamics ⓘ
this entity surface form: QED (quantum electrodynamics) theory
QED: The Strange Theory of Light and Matter → subject → quantum electrodynamics ⓘ
Dirac equation → usedIn → quantum electrodynamics ⓘ