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Algebraic Combinatorics Seminar - Marcel Golz
2020-07-23 14:30 (America/Toronto)
TITLE: Chord diagrams, colours, and QED

Speaker:
Marcel Golz

Affiliation:
University of Waterloo

Zoom:
Contact Karen Yeats

ABSTRACT:

Feynman graphs in quantum electrodynamics are essentially chord
diagrams with photon edges taking the role of chords attached to lines
or cycles given by electron edges. The associated Feynman integrals
involve traces of Dirac gamma matrices whose computation leads to
large sums of scalar Feynman integrals (cf. the earlier talk by O.
Schnetz).
