English

Clebsch-Gordan coefficients, hypergeometric functions and the binomial distribution

Mathematical Physics 2024-02-20 v1 math.MP Atomic Physics

Abstract

A particular case of degenerate Clebsch-Gordan coefficient can be expressed with three binomial coefficients. Such a formula, which may be obtained using the standard ladder operator procedure, can also be derived from the Racah-Shimpuku formula or from expressions of Clebsch-Gordan coefficients in terms of 3F2_3F_2 hypergeometric functions. The O'Hara interesting interpretation of this Clebsch-Gordan coefficient by binomial random variables can also be related to hypergeometric functions (2F1_2F_1), in the case where one of the parameters tends to infinity. This emphasizes the links between Clebsch-Gordan coefficients, hypergeometric functions and, what has been less exploited until now, the notion of probability within the framework of the quantum theory of angular momentum.

Keywords

Cite

@article{arxiv.2402.11298,
  title  = {Clebsch-Gordan coefficients, hypergeometric functions and the binomial distribution},
  author = {Jean-Christophe Pain},
  journal= {arXiv preprint arXiv:2402.11298},
  year   = {2024}
}
R2 v1 2026-06-28T14:51:49.705Z