89 citations · 269 across the 11 of their papers we have counts for
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Quasi Sturmian Basis in Two-Electron Continuum Problems
A. S. Zaytsev, L. U. Ancarani, S. A. Zaytsev
A new type of basis functions is proposed to describe a two-electron continuum which arises as a final state in electron-impact ionization and double photoionization of atomic syst…
One- and two-dimensional Coulomb Green's function matrices in parabolic Sturmians basis
S. A. Zaytsev
One- and two-dimensional operators which originate from the asymptotic form of the three-body Coulomb wave equation in parabolic coordinates are treated within the context of squar…
The -matrix inverse scattering approach for coupled channels with different thresholds
S. A. Zaytsev
The inverse scattering method within the -matrix approach to the two coupled-channel problem is discussed. We propose a generalization of the procedure to the case with differen…
A Discrete Version of the Inverse Scattering Problem and the J-matrix Method
S. A. Zaytsev
The problem of the Hamiltonian matrix in the oscillator and Laguerre basis construction from the S-matrix is treated in the context of the algebraic analogue of the Marchenko metho…
-matrix and Isolated States
A. M. Shirokov, S. A. Zaytsev
We show that a quantum system with nonlocal interaction can have bound states of unusual type -- Isolated States (IS). IS is a bound state that is not in correspondence with the $S…