Floquet Engineering Magnetism and Superconductivity in the Square-Lattice Hubbard Model
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866917285213503488 |
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| author | Herre, Jan-Niklas Okugawa, Takuya Fischer, Ammon Karrasch, Christoph Kennes, Dante M. |
| author_facet | Herre, Jan-Niklas Okugawa, Takuya Fischer, Ammon Karrasch, Christoph Kennes, Dante M. |
| contents | We study the interplay of magnetic order and superconductivity in the square-lattice Hubbard model under periodic driving with circularly polarized light. Formulating diagrammatic techniques based on the random-phase approximation in terms of Floquet Green's functions, allows us to analyze fluctuation-driven unconventional pairing for weak-to-moderate interactions. The interplay of repulsive interactions and photo-assisted hopping of electrons gives rise to a rich magnetic phase diagram featuring an antiferromagnetic-to-ferromagnetic transition prior to a Floquet Lifshitz transition. Close to the antiferromagnetic transition, topological $d+id$-wave superconductivity prevails in the phase diagram for a wide range of drive parameters. At intermediate-to-high frequency driving near the Floquet Lifshitz transition, superconducting orders are tuned from spin-singlet $d$-wave to spin-triplet $p$-wave character, providing an effective protocol for Floquet engineering topological superconductivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_11798 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Floquet Engineering Magnetism and Superconductivity in the Square-Lattice Hubbard Model Herre, Jan-Niklas Okugawa, Takuya Fischer, Ammon Karrasch, Christoph Kennes, Dante M. Strongly Correlated Electrons We study the interplay of magnetic order and superconductivity in the square-lattice Hubbard model under periodic driving with circularly polarized light. Formulating diagrammatic techniques based on the random-phase approximation in terms of Floquet Green's functions, allows us to analyze fluctuation-driven unconventional pairing for weak-to-moderate interactions. The interplay of repulsive interactions and photo-assisted hopping of electrons gives rise to a rich magnetic phase diagram featuring an antiferromagnetic-to-ferromagnetic transition prior to a Floquet Lifshitz transition. Close to the antiferromagnetic transition, topological $d+id$-wave superconductivity prevails in the phase diagram for a wide range of drive parameters. At intermediate-to-high frequency driving near the Floquet Lifshitz transition, superconducting orders are tuned from spin-singlet $d$-wave to spin-triplet $p$-wave character, providing an effective protocol for Floquet engineering topological superconductivity. |
| title | Floquet Engineering Magnetism and Superconductivity in the Square-Lattice Hubbard Model |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.11798 |