Relativistic theory of the double photoionization of heliumlike atoms
A fully relativistic calculation of the double photoionization of heliumlike atoms is presented. The approach is based on the partial-wave representation of the Dirac continuum states and accounts for the retardation in the electron-electron interaction as well as the higher-order multipoles of the...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
6 September 2011
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| In: |
Physical review. A, Atomic, molecular, and optical physics
Year: 2011, Volume: 84, Issue: 3, Pages: 1-9 |
| ISSN: | 1094-1622 |
| DOI: | 10.1103/PhysRevA.84.032703 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.84.032703 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.84.032703 
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| Author Notes: | Vladimir A. Yerokhin and Andrey Surzhykov |
| Summary: | A fully relativistic calculation of the double photoionization of heliumlike atoms is presented. The approach is based on the partial-wave representation of the Dirac continuum states and accounts for the retardation in the electron-electron interaction as well as the higher-order multipoles of the absorbed photon. The electron-electron interaction is taken into account to the leading order of the perturbation theory. The relativistic effects are shown to become prominent already for the medium-Z ions, changing the shape and the asymptotic behavior of the photon energy dependence of the ratio of the double-to-single photoionization cross section. |
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| Item Description: | Gesehen am 12.12.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1094-1622 |
| DOI: | 10.1103/PhysRevA.84.032703 |