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Related Experiment Videos

Two-loop self-energy correction in high-Z hydrogenlike ions.

V A Yerokhin1, P Indelicato, V M Shabaev

  • 1Department of Physics, St. Petersburg State University, Oulianovskaya 1, St. Petersburg 198504, Russia.

Physical Review Letters
|August 26, 2003
PubMed
Summary

This study presents a comprehensive evaluation of two-loop self-energy diagrams for highly charged hydrogen-like ions. The findings are crucial for understanding atomic structure in extreme electromagnetic fields.

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Area of Science:

  • Atomic Physics
  • Quantum Electrodynamics (QED)

Background:

  • Hydrogen-like ions are fundamental systems for testing quantum electrodynamics (QED).
  • Accurate calculations are essential for understanding atomic structure, especially for high atomic numbers (Z).

Purpose of the Study:

  • To perform a complete evaluation of two-loop self-energy diagrams.
  • To extend calculations to all orders in Zalpha for highly charged ions.

Main Methods:

  • Perturbative expansion in the fine-structure constant alpha.
  • Calculation of two-loop self-energy contributions.
  • Focus on high-Z hydrogen-like ions (Z >= 40).

Main Results:

  • A complete evaluation of two-loop self-energy diagrams is achieved.

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  • Results are presented to all orders in Zalpha.
  • The study provides precise theoretical predictions for high-Z ions.

    • Conclusions:

    • The presented calculations offer a significant advancement in the theoretical understanding of atomic structure in high-Z ions.
    • These results are vital for precise spectroscopic predictions and comparisons with experimental data.