Chiral Superconductivity in Periodically Driven Altermagnet/Superconductor Heterostructures
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866912997903958016 |
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| author | Wan, Xiaolin Qin, Zheng Zhan, Fangyang Zeng, Junjie Xu, Dong-Hui Wang, Rui |
| author_facet | Wan, Xiaolin Qin, Zheng Zhan, Fangyang Zeng, Junjie Xu, Dong-Hui Wang, Rui |
| contents | The interplay between magnetism and superconductivity provides a fertile ground for engineering exotic topological phases, while dynamical control via periodic driving offers a unique avenue to access quantum states that are inaccessible in static equilibrium. Here, we propose a strategy to achieve the Floquet chiral topological superconductivity in an altermagnet-superconductor heterostructure driven by elliptically polarized light. We show that for $s$-wave pairing, the system undergoes a transition from a trivial to a chiral topological superconducting phase. More strikingly, with the introduction of mixed $s+d$-wave pairing, we find that the system can access Floquet chiral topological superconducting phases with highly tunable Chern numbers up to N=4. These exotic phases are attributed to the intertwining of altermagnetism, superconducting pairing, and the periodic driving field. Our work establishes the light-driven altermagnetic heterostructure as a versatile platform for exploring and manipulating high-Chern-number chiral topological superconductivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_01596 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Chiral Superconductivity in Periodically Driven Altermagnet/Superconductor Heterostructures Wan, Xiaolin Qin, Zheng Zhan, Fangyang Zeng, Junjie Xu, Dong-Hui Wang, Rui Superconductivity The interplay between magnetism and superconductivity provides a fertile ground for engineering exotic topological phases, while dynamical control via periodic driving offers a unique avenue to access quantum states that are inaccessible in static equilibrium. Here, we propose a strategy to achieve the Floquet chiral topological superconductivity in an altermagnet-superconductor heterostructure driven by elliptically polarized light. We show that for $s$-wave pairing, the system undergoes a transition from a trivial to a chiral topological superconducting phase. More strikingly, with the introduction of mixed $s+d$-wave pairing, we find that the system can access Floquet chiral topological superconducting phases with highly tunable Chern numbers up to N=4. These exotic phases are attributed to the intertwining of altermagnetism, superconducting pairing, and the periodic driving field. Our work establishes the light-driven altermagnetic heterostructure as a versatile platform for exploring and manipulating high-Chern-number chiral topological superconductivity. |
| title | Chiral Superconductivity in Periodically Driven Altermagnet/Superconductor Heterostructures |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2604.01596 |