Electron structure of endohedrally confined atoms: atomic hydrogen in an attractive shell
J P ConneradeThe Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ, UKV. K. DolmatovS V Starodubtsev Physical-Technical Institute, G Mavlyanova Str. 2, 700084 Tashkent, UzbekistanP. Anantha LakshmiThe School of Physics, University of Hyderabad, Hyderabad 500046, IndiaSteven T. MansonDepartment of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
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The properties of hydrogen confined endohedrally at the geometrical centre of a spherical, attractive short-range potential shell are explored. The evolution of the energy spectrum, as a function of the depth of the shell, is found to exhibit unusual level crossings and degeneracies resulting in avoided crossings and a new phenomenon of `mirror collapse' where the localized states switch places. In addition, a new level ordering, principally by the number of nodes in the radial wavefunction, develops. The results apply generally to endohedrally confined atoms. Further, they suggest a new tool for controlling the properties of atoms.
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