A correct procedure for constructing supersymmetry in three dimensions is presented. The degeneracies are found between states of the same l but different n and Z and the previous results on the Coulomb and the three-dimensional isotropic oscillator problems are reestablished. The authors also consider the hydrogen-helium problem and find supersymmetry to hold to a good approximation.

Bijan Kumar Bagchi

Physics

(SoNS) School of Natural Sciences

A. Lahiri

P. Kumar Roy

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