Exact results for the infinite supersymmetric extensions of the infinite square well

K. Gutierrez, E. León, M. Belloni, R. W. Robinett

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3 Scopus citations


One-dimensional potentials defined by (for integer S) arise in the repeated supersymmetrization of the infinite square well, here defined over the region (0, a). We review the derivation of this hierarchy of potentials and then use the methods of supersymmetric quantum mechanics, as well as more familiar textbook techniques, to derive compact closed-form expressions for the normalised solutions, , for all V (S)(x) in terms of well-known special functions in a pedagogically accessible manner. We also note how the solutions can be obtained as a special case of a family of shape-invariant potentials, the trigonometric Pöschl-Teller potentials, which can be used to confirm our results. We then suggest additional avenues for research questions related to, and pedagogical applications of, these solutions, including the behaviour of the corresponding momentum-space wave functions for large and general questions about the supersymmetric hierarchies of potentials which include an infinite barrier.

Original languageEnglish (US)
Article number065404
JournalEuropean Journal of Physics
Issue number6
StatePublished - Oct 3 2018

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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