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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.04451 |
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| _version_ | 1866912809623748608 |
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| author | Okugawa, Takuya Paaske, Jens Eckstein, Martin Sentef, Michael A. Rubio, Angel Millis, Andrew J. |
| author_facet | Okugawa, Takuya Paaske, Jens Eckstein, Martin Sentef, Michael A. Rubio, Angel Millis, Andrew J. |
| contents | We analyse the magnon spectrum and distribution function of the antiferromagnetic phase of the Floquet-driven Hubbard model. Above a critical drive strength, we find a dynamical instability, resulting from a change in sign of the magnon damping at a non-zero wavevector. The change in sign means that infinitesimal fluctuations grow with time, corresponding to an instability of the driven state. Implications for the nonequilibrium distribution function and the strong drive nonlinear dynamics are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_04451 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Dynamical instability in a Floquet-Driven Dissipative System Okugawa, Takuya Paaske, Jens Eckstein, Martin Sentef, Michael A. Rubio, Angel Millis, Andrew J. Strongly Correlated Electrons We analyse the magnon spectrum and distribution function of the antiferromagnetic phase of the Floquet-driven Hubbard model. Above a critical drive strength, we find a dynamical instability, resulting from a change in sign of the magnon damping at a non-zero wavevector. The change in sign means that infinitesimal fluctuations grow with time, corresponding to an instability of the driven state. Implications for the nonequilibrium distribution function and the strong drive nonlinear dynamics are discussed. |
| title | Dynamical instability in a Floquet-Driven Dissipative System |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2601.04451 |