Ab initio calculations of lower resonant states of two-electron systems |
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Authors: | A A Preobrazhenskaya S O Adamson D D Kharlampidi A I Dement’ev |
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Institution: | 1.Moscow State Pedagogical University,Moscow,Russia;2.Moscow State University,Moscow,Russia |
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Abstract: | The complex scaling and the stabilization methods are applied to calculating the parameters of the lowest resonance states of He and Li+. The results obtained by both methods are in a good agreement with the published data. It is shown that the wave functions constructed using the restricted configuration interaction approximation provide fairly accurate estimates of the resonance parameters. The possibility of using the stabilization method for calculating the phase shift function is also discussed. |
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