{ "id": "1801.02191", "version": "v1", "published": "2018-01-07T14:05:02.000Z", "updated": "2018-01-07T14:05:02.000Z", "title": "The hydrogen atom in $D=3-2ε$ dimensions", "authors": [ "Gregory S. Adkins" ], "comment": "5 pages", "categories": [ "quant-ph", "hep-ph" ], "abstract": "The nonrelativistic hydrogen atom in $D=3-2\\epsilon$ dimensions is the reference system for perturbative schemes used in dimensionally regularized nonrelativistic effective field theories to describe hydrogen-like atoms. Solutions to the $D$-dimensional Schr\\\"odinger-Coulomb equation are given in the form of a double power series. Energies and normalization integrals are obtained numerically and also perturbatively in terms of $\\epsilon$. The utility of the series expansion is demonstrated by the calculation of the divergent expectation value $\\langle (V')^2 \\rangle$.", "revisions": [ { "version": "v1", "updated": "2018-01-07T14:05:02.000Z" } ], "analyses": { "keywords": [ "dimensions", "divergent expectation value", "regularized nonrelativistic effective field theories", "nonrelativistic hydrogen atom", "series expansion" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }