Abstract
A purely algebraic perturbation theory based on deforming the generators of the dynamical group SU(1, 1) is applied to the l = 0 Morse potential problem with \(V(r) = V_0 \left[ {e^{ - 2ar} - 2be^{ - ar} } \right]\). In particular, perturbations of the form \((e^{ - ar} )^N \) and \((e^{ - ar} )^{ - N} \) are treated explicitly.
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Beker, H. SU(1, 1) Perturbations of the s-Wave Morse Potential Problem. Foundations of Physics 28, 999–1004 (1998). https://doi.org/10.1023/A:1018825415374
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DOI: https://doi.org/10.1023/A:1018825415374