Research output: Contribution to journal › Article › peer-review
A simple method for deriving the energy level shifts in the QED of multicharged ions is considered. Calculation formulas for the reducible part of the two-photon-exchange diagrams in both the Feynman and the Coulomb gauges are derived for arbitrary states of two-electron multicharged ions. The final expressions for this contribution have a form that is convenient enough for numerical calculations.
Original language | English |
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Pages (from-to) | 4489-4501 |
Number of pages | 13 |
Journal | Physical Review A |
Volume | 49 |
Issue number | 6 |
DOIs | |
State | Published - 1 Jan 1994 |
ID: 35710078