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Title: Exact solutions of the Schroedinger equation for {sup 1,3}S states of He atom with Fues-Kratzer-type potential

Journal Article · · International Journal of Quantum Chemistry

In this article exact solutions of a two-electron Schroedinger equation for the Coulomb potential were extended to the Fues-Kratzer-type potential: ({cflx Z}({Omega})/r) + ({cflx A}/r{sup 2}). The wave function {Psi}(r, {Omega}) is expanded into generalized Laguerre polynomials and hyperspherical harmonics. An analytical expression of two-electron systems is given for matrix elements and accurate energy eigenvalues of the excited state of {sup 1,3}S helium are calculated by using the hyperspherical harmonics method. The present results are compared with previous theoretical calculations and it is concluded that the convergence of energy eigenvalues is faster.

Research Organization:
Gazi Univ., Ankara (TR)
OSTI ID:
20014299
Journal Information:
International Journal of Quantum Chemistry, Vol. 76, Issue 5; Other Information: PBD: 15 Feb 2000; ISSN 0020-7608
Country of Publication:
United States
Language:
English