Nimrod Moiseyev, Phillip R. Certain
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.
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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.
Key concepts: Degenerate energy levels, Perturbation (astronomy), Physics, Helium atom, Perturbation theory (quantum mechanics), Helium, Atomic physics, Quantum mechanics