#wigner #clebsch #gordan

wigner-symbols

Exact Clebsch–Gordan coefficients and Wigner 3-jm, 6-j, and 9-j symbols for coupling and recoupling angular momenta in quantum mechanics

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Uses old Rust 2015

0.5.0 Jun 6, 2021
0.4.0 Sep 20, 2020
0.3.0 Jan 15, 2018
0.2.1 Dec 11, 2017
0.1.1 Nov 12, 2017

#348 in Science

MIT/Apache and LGPL-3.0+

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wigner-symbols

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Calculates Clebsch–Gordan coefficients and Wigner 3-jm, 6-j, and 9-j, and 12-j symbols exactly. They are often used for coupling and recoupling angular momenta in quantum mechanics. Based on the Haskell version of wigner-symbols.

The definition of 12-j symbols is based on the equation (19.3) of the following textbook.

  • A. P. Yutsis, I. B. Levinson, and V. V. Vanagas, Mathematical Apparatus of the Theory of Angular Momentum (Israel Program for Scientific Translations, Jerusalem, 1962).

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~483K SLoC