Reference state contributions to the two-photon interaction corrections for the energy shifts in multicharged few-electron ions

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, , Citation L N Labzowsky and M A Tokman 1995 J. Phys. B: At. Mol. Opt. Phys. 28 3717 DOI 10.1088/0953-4075/28/17/011

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1 Dept. of Phys., St. Petersburg State Univ., Russia

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0953-4075/28/17/3717

Abstract

The second-order alpha corrections in QED, in particular the two-photon exchange corrections, are investigated by the line profile approach. The expressions for equal-energy 'reference state' corrections and for the unequal-energy Coulomb-transverse corrections are given. The numerical calculations for the latter corrections of 'box' and 'cross' type in the case of (1s1/2)22s1/2 and (1s1/2)22p1/2 states of Li-like heavy ions are presented.

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10.1088/0953-4075/28/17/011