Parabolic Sturmian approach to the three-body continuum Coulomb problem

Zaytsev, Sergei;Popov, Yuri;Piraux, Bernard
(2013) Physics of Atomic Nuclei — Vol. 76, n° 3, p. 365 (2013)

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Authors
  • Zaytsev, SergeiPacific National University, Khabarovsk, USSR
    Author
  • Popov, YuriUCLouvain
    Author
  • Piraux, BernardUCLouvain
    Author
Abstract
The three-body continuum Coulomb problem is treated in terms of the generalized parabolic coordinates. Approximate solutions are expressed in the form of a Lippmann-Schwinger-type equation, where the Green’s function includes the leading term of the kinetic energy and the total potential energy, whereas the potential contains the non-orthogonal part of the kinetic energy operator. As a test of this approach, the integral equation for the (e −, e −, He++) system has been solved numerically by using the parabolic Sturmian basis representation of the (approximate) potential. Convergence of the expansion coefficients of the solution has been obtained as the basis set used to describe the potential is enlarged.
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Zaytsev, S., Popov, Y., & Piraux, B. (2013). Parabolic Sturmian approach to the three-body continuum Coulomb problem. Physics of Atomic Nuclei, 76(3), 365. https://doi.org/10.1134/S1063778813020178 (Original work published 2013)