Fig. 6: Visualization of basis functions.

All basis functions \({}_{k}^{\phantom{0}}{{{{{{{{\rm{g}}}}}}}}}_{l}^{m}\) with K = 4 (see Eq. (13)) with different radial and angular components ρ_k (Eq. (14)) and \({Y}_{l}^{m}\) (Eq. (17)) are shown.