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arXiv · 1805.07153

Bound states of a short-range potential with inverse cube singularity

A. D. Alhaidari
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Abstract

We use the Tridiagonal Representation Approach (TRA) to obtain exact bound states solution (energy spectrum and wavefunction) of the Schr\"odinger equation for a three-parameter short-range potential with 1/r, 1/r^2 and 1/r^3 singularities at the origin. The solution is a finite series of square integrable functions with weighted coefficients that satisfy a three-term recursion relation. The solution of the recursion is the discrete version of a non-conventional orthogonal polynomial. We are currently preparing to use the results of this work to study the binding of an electron to a molecule with an effective electric quadrupole moment, which has the same 1/r^3 singularity.

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A. D. Alhaidari. 2018-05-18. Bound states of a short-range potential with inverse cube singularity. https://doi.org/10.1142/s0217732319502237

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