Mitigating higher-band heating in Floquet-Hubbard lattices via two-tone driving
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866918100425768960 |
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| author | Chen, Yuanning Zhu, Zijie Viebahn, Konrad |
| author_facet | Chen, Yuanning Zhu, Zijie Viebahn, Konrad |
| contents | Multi-photon resonances to high-lying energy levels represent an unavoidable source of Floquet heating in strongly driven quantum systems. In this work, we extend the recently developed two-tone approach of 'cancelling' multi-photon resonances to shaken lattices in the Hubbard regime. Our experiments show that even for strong lattice shaking the inclusion of a weak second drive leads to cancellation of multi-photon heating resonances. Surprisingly, the optimal cancelling amplitude depends on the Hubbard interaction strength $U$, in qualitative agreement with exact diagonalisation calculations. Our results call for novel analytical approaches to capture the physics of strongly-driven-strongly-interacting many-body systems. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_12308 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mitigating higher-band heating in Floquet-Hubbard lattices via two-tone driving Chen, Yuanning Zhu, Zijie Viebahn, Konrad Quantum Gases Mesoscale and Nanoscale Physics Atomic Physics Quantum Physics Multi-photon resonances to high-lying energy levels represent an unavoidable source of Floquet heating in strongly driven quantum systems. In this work, we extend the recently developed two-tone approach of 'cancelling' multi-photon resonances to shaken lattices in the Hubbard regime. Our experiments show that even for strong lattice shaking the inclusion of a weak second drive leads to cancellation of multi-photon heating resonances. Surprisingly, the optimal cancelling amplitude depends on the Hubbard interaction strength $U$, in qualitative agreement with exact diagonalisation calculations. Our results call for novel analytical approaches to capture the physics of strongly-driven-strongly-interacting many-body systems. |
| title | Mitigating higher-band heating in Floquet-Hubbard lattices via two-tone driving |
| topic | Quantum Gases Mesoscale and Nanoscale Physics Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2410.12308 |