Maple procedures for the coupling of angular momenta. An up-date of the RACAH module
All up-date of the RACAH module is presented, adopted to Maple I I and 12, which supports both, algebraic manipulations of expressions from Racah's algebra as well as numerical computations of many functions and symbols from the theory of angular momentum. The functions that are known to the program include the Wigner rotation matrices and n-j symbols, Clebsch-Gordan and Gaunt coefficients, spherical harmonics of various kinds as well as several others.
gaunt coefficient spherical harmonic angular momentum theory bipolar harmonic clebsch-gordan coefficient and expansion racah algebra techniques recoupling coefficient sharp's symbol spinor vector and tensor spherical harmonic sum rule evaluation wigner n-j symbol d-function and rotation matrix yutsis graph