Gj. Zeng et al., Isomorphism transformation between the hydrogen atom and four-dimensional harmonic oscillator, INT J THEOR, 37(10), 1998, pp. 2463-2479
By means of the SU(1, 1) algebra we study the relationships between the coo
rdinates, energy, angular momentum, spherical harmonics, and radial functio
n of a hydrogen atom and those of a four-dimensional harmonic oscillator. T
he energies and angular momenta of the two quantum systems are found to cor
respond to one another.