Perturbation approach to the complex-rotation method
- 1 May 1979
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 37 (5) , 1621-1632
- https://doi.org/10.1080/00268977900101161
Abstract
Non-degenerate and almost degenerate perturbation theory is applied to the problem of calculating autoionizing resonances of the helium atom using the complex-rotation method. The radii of convergence of the series are often found to be too small to allow the perturbation method to have general utility.Keywords
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