Rovibrational computations for He$_2^+$ X $Σ_\mathrm{u}^+$ including non-adiabatic, relativistic and QED corrections
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866911463501725696 |
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| author | Mátyus, Edit Margócsy, Ádám |
| author_facet | Mátyus, Edit Margócsy, Ádám |
| contents | We report the potential energy curve, the diagonal Born-Oppenheimer, non-adiabatic mass, relativistic, and leading-order QED corrections for the ground electronic state of the helium dimer cation; the higher-order QED and finite-nuclear size effects are also estimated. The computations are carried out with an improved error control and over a much broader configuration range compared to earlier work [D. Ferenc, V. I. Korobov, and E. Mátyus, Phys. Rev. Lett. 125, 213001 (2020)]. As a result, all rovibrational bound states are reported with an estimated accuracy of 0.005 cm$^{-1}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_19120 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Rovibrational computations for He$_2^+$ X $Σ_\mathrm{u}^+$ including non-adiabatic, relativistic and QED corrections Mátyus, Edit Margócsy, Ádám Chemical Physics We report the potential energy curve, the diagonal Born-Oppenheimer, non-adiabatic mass, relativistic, and leading-order QED corrections for the ground electronic state of the helium dimer cation; the higher-order QED and finite-nuclear size effects are also estimated. The computations are carried out with an improved error control and over a much broader configuration range compared to earlier work [D. Ferenc, V. I. Korobov, and E. Mátyus, Phys. Rev. Lett. 125, 213001 (2020)]. As a result, all rovibrational bound states are reported with an estimated accuracy of 0.005 cm$^{-1}$. |
| title | Rovibrational computations for He$_2^+$ X $Σ_\mathrm{u}^+$ including non-adiabatic, relativistic and QED corrections |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2506.19120 |