Summary
The spectrum of the hydrogen atom inN-dimensions is considered as prototype of the semi-classical method and is shown to yield a closed-form expression for the excitation spectrum, which includes leading large-N quantum fluctuations.
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van der Merwe, P.d.T. The hydrogen atom as prototype of the large-N expansion. Lett. Nuovo Cimento 37, 86–88 (1983). https://doi.org/10.1007/BF02747253
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DOI: https://doi.org/10.1007/BF02747253