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Phys. Rev. A 66, 042507 (2002) [5 pages]

Asymptotically exact expression for the energies of the 3Se Rydberg series in a two-electron system

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I. A. Ivanov1,2, M. W. J. Bromley1, and J. Mitroy1
1Faculty of Science, Northern Territory University, Darwin NT 0909, Australia
2Institute of Spectroscopy, Academy of Sciences of Russia, Troitsk 142092, Russia

Received 6 May 2002; revised 14 August 2002; published 23 October 2002

The 1sns3Se Rydberg series in a two-electron system with the charge of the nucleus, Z≈1, is treated by means of the quantum-defect theory. Comparison with configuration interaction calculations suggests that the quantum-defect expression for the energy levels becomes asymptotically exact as Z⃗1. This provides an analytic description of the disappearance of the 1sns3Se bound states when Z approaches the critical value of 1.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.042507
DOI:
10.1103/PhysRevA.66.042507
PACS:
03.65.Vf, 31.10.+z, 31.25.Jf
 
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