Clebsch-Gordan coefficient

English

Etymology

Named after the German mathematicians Alfred Clebsch and Paul Gordan, who encountered an equivalent problem in invariant theory.

Noun

Clebsch-Gordan coefficient (plural Clebsch-Gordan coefficients)

1. (physics) Any of a class of numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an uncoupled tensor product basis.