Long-range interaction between ground and excited state hydrogen atoms

The asymptotic expansion at large distances is obtained for the interaction between a ground state hydrogen atom and an excited hydrogen atom with principal quantum number n = 2,..., 10. A degenerate perturbation theory up to the second order is employed to obtain accurate results. The asymptotic re...

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Veröffentlicht in:	Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2008-11, Vol.41 (21), p.215202-215202 (8)
Hauptverfasser:	Vrinceanu, D, Dalgarno, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic and molecular physics Calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation calculations) Effects of atomic and molecular interactions on electronic structure Electronic structure of atoms, molecules and their ions: theory Exact sciences and technology Perturbation theory Physics
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Beschreibung
Zusammenfassung:	The asymptotic expansion at large distances is obtained for the interaction between a ground state hydrogen atom and an excited hydrogen atom with principal quantum number n = 2,..., 10. A degenerate perturbation theory up to the second order is employed to obtain accurate results. The asymptotic representation for several special cases is found in the limit of large quantum number n.
ISSN:	0953-4075 1361-6455
DOI:	10.1088/0953-4075/41/21/215202