Generation of exact analytic bound state solutions from solvable non-powerlaw potentials by a transformation method

Abstract:

A transformation method has been applied to the exactly solvable Hulthen problem to generate a hierarchy of exactly solved quantum systems in any chosen dimension. The generated quantum systems are, in general, energy-dependent with a single normalized eigenfunction, as the Hulthen potential is a non-powerlaw potential. A method has been devised to convert a subset of the generated quantum systems with energy-dependent potentials to a single normal system with an energy-independent potential that behaves like a potential qualitatively similar to the Poschl-Teller potential. A second-order application of the transformation method on the Hulthen system produces another Sturmian quantum system and a different method is given to regroup them into a normal quantum system which resembles the Morse potential. Existence of normalizable eigenfunctions for these systems are found to be dependent on the local and asymptotic behaviour of the transformation function.

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Received 30 August 2000 and Received in final form 16 March 2001

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Ahmed, S., Borah, B. & Sharma, D. Generation of exact analytic bound state solutions from solvable non-powerlaw potentials by a transformation method. Eur. Phys. J. D 17, 5–11 (2001). https://doi.org/10.1007/s100530170032

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  • PACS. 03.65.Ge Solutions of wave equations: bound states