uncoupledSpinBasis

uncoupledSpinBasis(j1, mj1, j2, mj2)

Convert coupled spin basis to uncoupled weights (Clebsch–Gordan).

Parameters:

• j1 (double) – First total spin \(j_1\)

• mj1 (double) – Magnetic sublevel \(m_{j,1}\)

• j2 (double) – Second total spin \(j_2\)

• mj2 (double) – Magnetic sublevel \(m_{j,2}\)

Returns:

Weights for each coupled \(|j_3,m_{j,3}\rangle\) basis element

Return type:

double

Computes coefficients so that \(|j_1,m_{j,1}; j_2,m_{j,2}\rangle = \sum C\,|j_3,m_{j,3}\rangle\).