Realization of Inner Robust Boundary Modes in Singular Flatband Lattices
We demonstrate nontrivial inner robust boundary modes (RBMs) in laser-written singular flatband lattices with multiple holes, establishing a universal relation between the numbers of flatband states and inner RBMs counted by the Betti numbers.
Authors
- Daohong Song (ORCID: https://orcid.org/0000-0001-9786-8209)
- Daniel Leykam (ORCID: https://orcid.org/0000-0002-8588-9886)
- Shiqi Xia (ORCID: https://orcid.org/0000-0003-0070-3200)
- Shenyi Gao
- Liqin Tang (ORCID: https://orcid.org/0000-0001-8029-7091)
- Yongsheng Liang (ORCID: https://orcid.org/0000-0001-8575-495X)
- Limin Song (ORCID: https://orcid.org/0000-0002-5094-4013)
- Zhigang Chen (ORCID: https://orcid.org/0000-0001-7050-9943)
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1364/cleo_fs.2025.ff148_5
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00