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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/2504.00578 |
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| _version_ | 1866911191500062720 |
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| author | Seligmann, Steffen Kelardeh, Hamed Koochaki Holthaus, Martin |
| author_facet | Seligmann, Steffen Kelardeh, Hamed Koochaki Holthaus, Martin |
| contents | We demonstrate longtime coherent subharmonic motion of a many-boson system subjected to an external time-periodic driving force. The underlying mechanism is exemplified numerically through analysis of a periodically driven Bose-Hubbard dimer, and clarified conceptually by semiclassical requantization of invariant tubes pertaining to the system's mean-field description. In this way, one arrives at pre-Floquet states that relate to the actual many-body Floquet states in a manner similar to the relation of site-localized Wannier states to lattice-extended Bloch states in solid-state physics. It is argued that even high-order subharmonic response can be systematically engineered, and be observed experimentally, with weakly interacting Floquet condensates comprising a sufficiently large number of particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_00578 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Pre-Floquet states facilitating coherent subharmonic response of periodically driven many-body systems Seligmann, Steffen Kelardeh, Hamed Koochaki Holthaus, Martin Quantum Physics We demonstrate longtime coherent subharmonic motion of a many-boson system subjected to an external time-periodic driving force. The underlying mechanism is exemplified numerically through analysis of a periodically driven Bose-Hubbard dimer, and clarified conceptually by semiclassical requantization of invariant tubes pertaining to the system's mean-field description. In this way, one arrives at pre-Floquet states that relate to the actual many-body Floquet states in a manner similar to the relation of site-localized Wannier states to lattice-extended Bloch states in solid-state physics. It is argued that even high-order subharmonic response can be systematically engineered, and be observed experimentally, with weakly interacting Floquet condensates comprising a sufficiently large number of particles. |
| title | Pre-Floquet states facilitating coherent subharmonic response of periodically driven many-body systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.00578 |