Concept information
Preferred term
vertex function
Definition
- In quantum electrodynamics, the vertex function describes the coupling between a photon and an electron beyond the leading order of perturbation theory. In particular, it is the one particle irreducible correlation function involving the fermion ψ, the antifermion ψ¯, and the vector potential A. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Vertex_function)
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-VTC5SD2T-T
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