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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2512.15288 |
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| _version_ | 1866908886899884032 |
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| author | Reiter, M. A. Lazarev, E. O. Glazov, D. A. Malyshev, A. V. Volotka, A. V. |
| author_facet | Reiter, M. A. Lazarev, E. O. Glazov, D. A. Malyshev, A. V. Volotka, A. V. |
| contents | The energy correction associated with the self-energy diagram is the leading (in magnitude) and fundamental (in significance) contribution to the Lamb shift in highly charged ions. Conventional approaches to this correction rely on partial-wave expansions, which is a stumbling block limiting accuracy. To elucidate the issue, we perform a comprehensive comparative analysis of partial-wave-expansion convergence between two gauges: Feynman and Coulomb. Some tricks for improving the convergence are discussed as well. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15288 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bound-electron self-energy calculations in Feynman and Coulomb gauges: detailed analysis Reiter, M. A. Lazarev, E. O. Glazov, D. A. Malyshev, A. V. Volotka, A. V. Atomic Physics The energy correction associated with the self-energy diagram is the leading (in magnitude) and fundamental (in significance) contribution to the Lamb shift in highly charged ions. Conventional approaches to this correction rely on partial-wave expansions, which is a stumbling block limiting accuracy. To elucidate the issue, we perform a comprehensive comparative analysis of partial-wave-expansion convergence between two gauges: Feynman and Coulomb. Some tricks for improving the convergence are discussed as well. |
| title | Bound-electron self-energy calculations in Feynman and Coulomb gauges: detailed analysis |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2512.15288 |