Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2506.13495 |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866911175005962240 |
|---|---|
| author | Génévriez, Matthieu Jungers, Maxence Rosen, Christian Eichmann, Ulrich |
| author_facet | Génévriez, Matthieu Jungers, Maxence Rosen, Christian Eichmann, Ulrich |
| contents | We investigated resonant multiphoton excitation of high-angular-momentum planetary states of the strontium atom, a quasi-three-body Coulomb system, both experimentally and theoretically. A series of highly doubly excited electronic states converging to the double ionization threshold was identified and reproduced by first-principles calculations, which provided access to the two-electron wavefunctions of the resonances. In these states, the outer electron is dynamically localized at large distances by pendulum-like oscillations of the inner electron across the nucleus. A complementary simple molecular-like adiabatic model offers a clear interpretation of the correlated two-electron motion and suggests that the series is a general feature of highly doubly excited states of atoms and molecules. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_13495 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Series of molecular-like doubly excited states of a quasi-three-body Coulomb system Génévriez, Matthieu Jungers, Maxence Rosen, Christian Eichmann, Ulrich Atomic Physics Quantum Physics We investigated resonant multiphoton excitation of high-angular-momentum planetary states of the strontium atom, a quasi-three-body Coulomb system, both experimentally and theoretically. A series of highly doubly excited electronic states converging to the double ionization threshold was identified and reproduced by first-principles calculations, which provided access to the two-electron wavefunctions of the resonances. In these states, the outer electron is dynamically localized at large distances by pendulum-like oscillations of the inner electron across the nucleus. A complementary simple molecular-like adiabatic model offers a clear interpretation of the correlated two-electron motion and suggests that the series is a general feature of highly doubly excited states of atoms and molecules. |
| title | Series of molecular-like doubly excited states of a quasi-three-body Coulomb system |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2506.13495 |