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Hyperfine Structure and Isotope Shifts of Rydberg States in Alkaline Earth Atoms

  • E. Matthias
  • H. Rinneberg
  • R. Beigang
  • A. Timmermann
  • J. Neukammer
  • K. Lücke

Abstract

Rydberg states of atoms with two valence electrons exhibit three markedly different features compared to alkali systems. First of all, the coupling between the two valence electrons is most crucial for the properties of the Rydberg states and, in general, we have to distinguish between series with predominant singlet or triplet character. Secondly, low-lying states of doubly excited configurations cause strong perturbations of the Rydberg series belonging to one excited valence electron. This can lead to both singlet-triplet mixing and/or configuration mixing more or less local in energy. The third feature involves the interaction between the ms valence electron of the ion and the nucleus. The electro-static part of it reveals itself through the field shift, while for nuclei with I=0 the magnetic interaction causes a hyperfine splitting as well as a higher-order shift.

Keywords

Hyperfine Structure Isotope Shift Rydberg State Hyperfine Splitting Principal Quantum Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • E. Matthias
    • 1
  • H. Rinneberg
    • 1
  • R. Beigang
    • 1
  • A. Timmermann
    • 1
  • J. Neukammer
    • 1
  • K. Lücke
    • 1
  1. 1.Institut für Atom- und FestkörperphysikFreie Universität BerlinBerlin WestDeutschland

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