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This Demonstration shows the Coulomb–Sturmian functions in configuration space, useful for some two-body problems. Here

is the principal quantum number with angular momentum

, and

is an exponential parameter.

Reference:

[1] J. P. Day, J. E. McEwen, and Z. Papp, "Two-Body Problems with Confining Potentials," Few-Body Systems, 47(1–2), 2010 pp. 17–23.

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Coulomb-Sturmian Functions in Configuration Space