Theoretical description of a photonic topological insulator based on a cubic lattice of bianisotropic resonators
Fuente:
arXiv
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866911443704610816 |
|---|---|
| author | Rozenblit, Alina Olekhno, Nikita |
| author_facet | Rozenblit, Alina Olekhno, Nikita |
| contents | In the present paper, we construct a theoretical description of a three-dimensional photonic topological insulator in the form of a simple cubic lattice of bianisotropic resonators that is based on a dyadic Green's function approach. By considering electric and magnetic dipole modes and the interactions between different numbers of the nearest resonators, we obtain the Bloch Hamiltonians and the corresponding tight-binding models and analyze the band diagrams, spatial structure of the eigenmodes, and their localization, revealing quadratic degeneracies in the vicinity of high-symmetry points in the absence of bianisotropy and the emergence of in-gap states localized at a domain wall upon the introduction of bianisotropy. Finally, we visualize the Berry curvature distributions to study the topological properties of the considered models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_12179 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Theoretical description of a photonic topological insulator based on a cubic lattice of bianisotropic resonators Rozenblit, Alina Olekhno, Nikita Optics Mesoscale and Nanoscale Physics Classical Physics In the present paper, we construct a theoretical description of a three-dimensional photonic topological insulator in the form of a simple cubic lattice of bianisotropic resonators that is based on a dyadic Green's function approach. By considering electric and magnetic dipole modes and the interactions between different numbers of the nearest resonators, we obtain the Bloch Hamiltonians and the corresponding tight-binding models and analyze the band diagrams, spatial structure of the eigenmodes, and their localization, revealing quadratic degeneracies in the vicinity of high-symmetry points in the absence of bianisotropy and the emergence of in-gap states localized at a domain wall upon the introduction of bianisotropy. Finally, we visualize the Berry curvature distributions to study the topological properties of the considered models. |
| title | Theoretical description of a photonic topological insulator based on a cubic lattice of bianisotropic resonators |
| topic | Optics Mesoscale and Nanoscale Physics Classical Physics |
| url | https://arxiv.org/abs/2602.12179 |