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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.09329 |
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| _version_ | 1866909920981417984 |
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| author | Greene, Chris H. Alarcón, Miguel A. |
| author_facet | Greene, Chris H. Alarcón, Miguel A. |
| contents | This paper presents an implementation of the non-iterative eigenchannel R-matrix method for the Dirac equation. It includes a brief introduction, implementation details, and results for the photoionization cross-section of the beryllium atom. Beryllium is a convenient test due to small but significant relativistic effects. The current calculation aligns with other R-matrix calculations and experiments. It observes the change in the Fano line shape of the (2pnd)1P series and, reveals a previously unnoticed coupling between triplet and singlet series observable in the ground state photoionization cross-section. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_09329 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Application of the Variational R-matrix Method for the Dirac Equation to the Be Atom Greene, Chris H. Alarcón, Miguel A. Atomic Physics Quantum Physics This paper presents an implementation of the non-iterative eigenchannel R-matrix method for the Dirac equation. It includes a brief introduction, implementation details, and results for the photoionization cross-section of the beryllium atom. Beryllium is a convenient test due to small but significant relativistic effects. The current calculation aligns with other R-matrix calculations and experiments. It observes the change in the Fano line shape of the (2pnd)1P series and, reveals a previously unnoticed coupling between triplet and singlet series observable in the ground state photoionization cross-section. |
| title | Application of the Variational R-matrix Method for the Dirac Equation to the Be Atom |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2408.09329 |