Feynman diagrams

E2030

computational tool concept in quantum field theory graphical representation

Feynman diagrams are graphical representations used in quantum field theory to visualize and calculate particle interactions and processes.

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All labels observed (3)

Label	Occurrences
Feynman diagrams canonical	13
Feynman diagram	1
Feynman diagram technique	1

Statements (49)

Predicate	Object
instanceOf	computational tool ⓘ concept in quantum field theory ⓘ graphical representation ⓘ
appliesTo	Standard Model ⓘ surface form: Standard Model of particle physics electroweak theory ⓘ quantum chromodynamics ⓘ quantum electrodynamics ⓘ scalar field theory ⓘ
basedOn	path integral formulation ⓘ perturbation theory ⓘ
field	high-energy physics ⓘ particle physics ⓘ quantum field theory ⓘ
hasComponent	external lines ⓘ internal lines ⓘ vertices ⓘ
hasProperty	each diagram corresponds to a mathematical expression ⓘ external legs correspond to incoming and outgoing particles ⓘ internal lines correspond to virtual particles ⓘ loop number related to quantum corrections ⓘ order in coupling constant determined by number of vertices ⓘ topological structure encodes momentum flow ⓘ
historicalImpact	revolutionized practical calculations in quantum electrodynamics ⓘ widely adopted standard tool in particle physics ⓘ
introducedIn	1940s ⓘ
inventor	Richard Feynman ⓘ
notationFor	S-matrix elements ⓘ time-ordered products of fields ⓘ
relatedConcept	Dyson series ⓘ Feynman rules ⓘ S-matrix ⓘ loop diagram ⓘ path integral ⓘ propagator ⓘ renormalization ⓘ tree-level diagram ⓘ vertex factor ⓘ
represents	external particle states ⓘ interaction vertices ⓘ propagators ⓘ terms in a perturbative expansion ⓘ virtual particles ⓘ
usedFor	bookkeeping of interaction terms ⓘ calculating scattering amplitudes ⓘ computing cross sections ⓘ computing decay rates ⓘ organizing perturbation theory ⓘ representing virtual particle exchange ⓘ visualizing particle interactions ⓘ

Referenced by (15)

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

Richard Feynman → knownFor → Feynman diagrams ⓘ

QED: The Strange Theory of Light and Matter → topic → Feynman diagrams ⓘ

Feynman rules → basedOn → Feynman diagrams ⓘ

Dyson series → relatedTo → Feynman diagrams ⓘ

S-matrix → relatedConcept → Feynman diagrams ⓘ

Dyson’s proof of equivalence of Feynman and Schwinger–Tomonaga formulations of QED → relatesTo → Feynman diagrams ⓘ

quantum electrodynamics → usesConcept → Feynman diagrams ⓘ

this entity surface form: Feynman diagram

1983 Alix G. Mautner Memorial Lectures → usesConcept → Feynman diagrams ⓘ

quantum field theory → usesConcept → Feynman diagrams ⓘ

Wick’s theorem → foundationFor → Feynman diagrams ⓘ

this entity surface form: Feynman diagram technique

Bhabha scattering → calculatedUsing → Feynman diagrams ⓘ

Møller scattering → isCalculatedUsing → Feynman diagrams ⓘ

Dyson’s formula → relatesTo → Feynman diagrams ⓘ

Penrose graphical notation → relatedTo → Feynman diagrams ⓘ

’t Hooft anomaly → canBeComputedBy → Feynman diagrams ⓘ

subject surface form: 't Hooft anomaly