Floquet-engineered nondispersive wave packets in helium under combined periodic and static fields
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916811590598656 |
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| author | González-Melan, Alejandro Ocampo, John Fitzgerald León Madroñero, Javier |
| author_facet | González-Melan, Alejandro Ocampo, John Fitzgerald León Madroñero, Javier |
| contents | We report the numerical observation of two-electron nondispersive wave packets in fully three-dimensional helium subjected to a linearly polarized monochromatic field. These localized quantum states follow periodic trajectories of the classical three-body Coulomb system without dispersion. The system is modeled using a spectral configuration interaction approach based on Coulomb-Sturmian functions, combined with Floquet theory and complex scaling. The resulting quasienergy spectrum reveals the existence of long-lived Floquet states arising from near-resonant coupling between frozen planet configurations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_21273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Floquet-engineered nondispersive wave packets in helium under combined periodic and static fields González-Melan, Alejandro Ocampo, John Fitzgerald León Madroñero, Javier Atomic Physics We report the numerical observation of two-electron nondispersive wave packets in fully three-dimensional helium subjected to a linearly polarized monochromatic field. These localized quantum states follow periodic trajectories of the classical three-body Coulomb system without dispersion. The system is modeled using a spectral configuration interaction approach based on Coulomb-Sturmian functions, combined with Floquet theory and complex scaling. The resulting quasienergy spectrum reveals the existence of long-lived Floquet states arising from near-resonant coupling between frozen planet configurations. |
| title | Floquet-engineered nondispersive wave packets in helium under combined periodic and static fields |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2506.21273 |