Abstract
Expansion of the superpotential to get approximate solutions in supersymmetric quantum mechanics (SSQM) is shown to be equivalent to logarithmic perturbation theory (LPT). LPT formulas for energy corrections obviate cumbersome procedures in the SSQM method. Likewise, the use of SSQM partner potentials with virtually identical bound state spectra solves difficulties with excited states encountered in LPT.
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