Ferron-Polaritons in Superconductor/Ferroelectric/Superconductor Heterostructures
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866917250885222400 |
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| author | Nursagatov, M. Ye, Xiyin Bobkov, G. A. Yu, Tao Bobkova, I. V. |
| author_facet | Nursagatov, M. Ye, Xiyin Bobkov, G. A. Yu, Tao Bobkova, I. V. |
| contents | We predict the formation of ferron-polariton - a hybrid light-matter quasiparticle arising from the coupling between collective ferroelectric excitations (ferrons) and Swihart photons in a superconductor/ferroelectric/superconductor heterostructure. The coupling provides direct evidence for ferrons and reaches the ultrastrong-coupling regime, with a spectral gap in the terahertz range, orders of magnitude larger than those in magnetic analogues, reflecting the superior strength of electric dipole interactions. Our work establishes superconductor-ferroelectric heterostructures as a novel platform for exploring extreme light-matter coupling and for developing high-speed, ferroelectric-based quantum technologies at terahertz frequencies. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_05473 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ferron-Polaritons in Superconductor/Ferroelectric/Superconductor Heterostructures Nursagatov, M. Ye, Xiyin Bobkov, G. A. Yu, Tao Bobkova, I. V. Superconductivity Mesoscale and Nanoscale Physics We predict the formation of ferron-polariton - a hybrid light-matter quasiparticle arising from the coupling between collective ferroelectric excitations (ferrons) and Swihart photons in a superconductor/ferroelectric/superconductor heterostructure. The coupling provides direct evidence for ferrons and reaches the ultrastrong-coupling regime, with a spectral gap in the terahertz range, orders of magnitude larger than those in magnetic analogues, reflecting the superior strength of electric dipole interactions. Our work establishes superconductor-ferroelectric heterostructures as a novel platform for exploring extreme light-matter coupling and for developing high-speed, ferroelectric-based quantum technologies at terahertz frequencies. |
| title | Ferron-Polaritons in Superconductor/Ferroelectric/Superconductor Heterostructures |
| topic | Superconductivity Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2602.05473 |