Tunable arbitrarily located quasi-corner states in multiphase weak topological insulator
Minhan Lou, Xinkuo Li, Jianrong Qiu, Dezhi Tan · 2026
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Description
Minhan Lou, Xinkuo Li, Jianrong Qiu, and Dezhi Tan report, in a 2026 physics paper, corner states in a crystal lattice that can be placed at will. Standard theory treats zero-dimensional corner states as fixed by bulk symmetry alone. Their states instead ride on weak topology and sit at chosen vacancy defects in a honeycomb lattice.
Two weak indexes sort four phases and pin where the charge center lies. A corner state forms at a boundary site only when that center sits at the site's broken bond. Three weak phases give three corner spots at unlike sites, and a stretch of the lattice can move them. Paired states also couple across long range with lively oscillation. Tunable light traps may follow from the design.
Catalog record
| CREATOR | Minhan Lou, Xinkuo Li, Jianrong Qiu, Dezhi Tan |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 124 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |