Wigner-Eckart / Schur-function decomposition for SU(2) coupling

Layer 1 — Physicsin the few-body-physics subtree

Wigner-Eckart / Schur-function framework for SU(2) angular-momentum coupling (Wigner 1927 Z Phys 43, 624; Racah 1942 Phys Rev 62, 438). Setup: the coupling of angular momenta j_1, j_2 to total J is governed by Clebsch-Gordan coefficients…

Related concepts

Schur function
Theorem: s_2(1, 1) - 3 = 0 (Schur s_2 evaluated at unit point)

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