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Coulomb-Sturmian separable expansion approach: Three-body Faddeev calculations for Coulomb-like interactions

Z. Papp·W. Plessas
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Abstract

We demonstrate the feasibility and efficiency of the Coulomb-Sturmian separable expansion method for generating accurate solutions of the Faddeev equations. Results obtained with this method are reported for several benchmark cases of bosonic and fermionic three-body systems. Correct bound-state results in agreement with the ones established in the literature are achieved for short-range interactions. We outline the formalism for the treatment of three-body Coulomb systems and present a bound-state calculation for a three-boson system interacting via Coulomb plus short-range forces. The corresponding result is in good agreement with the answer from a recent stochastic-variational-method calculation.

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Z. Papp, W. Plessas. 1996-04-18. Coulomb-Sturmian separable expansion approach: Three-body Faddeev calculations for Coulomb-like interactions. https://doi.org/10.1103/physrevc.54.50

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