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The positronium negative ion: Classical properties aaand semiclassical quantization

  • N.S. Simonović
  • J.M. Rost

Abstract:

Properties of collinear and planar periodic orbits for the positronium negative ion are examined with respect to the possibilities for semiclassical quantization. In contrast to other two-electron atomic systems as helium and H- the relevant orbits for quantization are fully stable and permit a full torus quantization. However, for lower excitations the area of stability in phase-space is too small for a reliable torus quantization. Instead, a quasi-separability of the three-body system is used to apply effective one-dimensional (WKB) quantization.

PACS. 36.10.-k Exotic atoms and molecules (containing mesons, muons, and other unusual particles) – 31.50.+w Excited states – 03.65.Sq Semiclassical theories and applications 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2001

Authors and Affiliations

  • N.S. Simonović
    • 1
  • J.M. Rost
    • 1
  1. 1.Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, 01187 Dresden, GermanyDE

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