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Quantum Electrodynamical Shifts in Multivalent Heavy Ions.

I I Tupitsyn1,2, M G Kozlov2,3, M S Safronova4,5

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Quantum electrodynamics (QED) corrections improve accuracy for complex ions. Nonlocal potentials are more precise than local ones for strongly bound electrons in QED calculations.

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Area of Science:

  • Atomic Physics
  • Quantum Electrodynamics (QED)
  • Computational Chemistry

Background:

  • Accurate calculations of electron correlation are crucial for understanding atomic structure.
  • Quantum electrodynamics (QED) effects significantly influence the properties of highly charged ions.
  • Metrology and fundamental physics tests require precise theoretical predictions for atomic systems.

Purpose of the Study:

  • To incorporate quantum electrodynamics (QED) corrections into correlation calculations for complex ions.
  • To evaluate the performance of different QED potentials in predicting properties of highly charged ions.
  • To guide experimental planning by providing reliable QED calculations.

Main Methods:

  • Direct incorporation of QED corrections into correlation treatments.
  • Comparison of four distinct QED potentials across various atomic systems.
  • Assessment of accuracy for QED calculations, particularly for strongly bound electrons.

Main Results:

  • All four QED potentials yielded consistent and reliable results for the studied ions.
  • Nonlocal QED potentials demonstrated higher accuracy compared to local potentials for strongly bound electrons.
  • The study provides predictions for highly charged ion properties essential for future experiments.

Conclusions:

  • The developed method accurately treats correlation and QED effects in complex ions.
  • Nonlocal QED potentials are recommended for achieving higher accuracy in calculations involving strongly bound electrons.
  • This work supports advancements in metrology and fundamental physics through precise atomic property predictions.