Non-homogeneous solutions of a Coulomb Schrödinger equation as basis set for scattering problems

JESSICA A. DEL PUNTA; MARCELO J AMBROSIO; GUSTAVO GASANEO; S. ZAYTSEV; L. U. ANCARANI

JOURNAL OF MATHEMATICAL PHYSICS

AMER INST PHYSICS

Lugar: American Institute of Physics; Año: 2014 vol. 55

0022-2488

We introduce and study two-body Quasi Sturmian functions which are proposed as basis functions for applications in three-body scattering problems. They are solutions of a two-body non-homogeneous Schrödinger equation. We present different analytic expressions including asymptotic behaviors for the pure Coulomb potential with a driven term involving either Slater-type or Laguerre-type orbitals. The efficiency of Quasi Sturmian functions as basis set is numerically illustrated through a two-body scattering problem.