Coulomb-gauge calculation of the combined effect of correlation and QED for heliumlike highly charged ions
We present numerical results for the energy shift due to the combination of Coulomb-correlation and quantum-electrodynamic effects in the ground state of heliumlike highly charged ions. The combined effect of two or more Coulomb interactions together with a single retarded photon, including radiativ...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
9 July 2015
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| In: |
Physical review. A, Atomic, molecular, and optical physics
Year: 2015, Volume: 92, Issue: 1 |
| ISSN: | 1094-1622 |
| DOI: | 10.1103/PhysRevA.92.012509 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.92.012509 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.92.012509 
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| Author Notes: | J. Holmberg, S. Salomonson, I. Lindgren |
| Summary: | We present numerical results for the energy shift due to the combination of Coulomb-correlation and quantum-electrodynamic effects in the ground state of heliumlike highly charged ions. The combined effect of two or more Coulomb interactions together with a single retarded photon, including radiative effects, is calculated for various atomic numbers in the range Z=14 to Z=50. One step in our computational scheme involves the evaluation of the Coulomb-screened self-energy at the two-photon level, and we present a detailed comparison between the Coulomb and Feynman gauges with regard to the various contributions to this effect. |
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| Item Description: | Gesehen am 07.09.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1094-1622 |
| DOI: | 10.1103/PhysRevA.92.012509 |