3 papers
cond-mat.mtrl-sci2024
Observation of Topological Corner State Arrays in Photonic Quasicrystals
Aoqian Shi, Yiwei Peng, Jiapei Jiang +8
Recently, the studies of topological corner states (TCSs) are extended from crystals to quasicrystals, which are referred to as higher-order topological quasicrystalline insulators…
physics.optics2024
Multifrequency and multimode topological waveguides in a Stampfli-triangle photonic crystal with large valley Chern numbers
Bei Yan, Yiwei Peng, Jianlan Xie +9
The multifrequency quantum valley Hall effect (QVHE) with a large valley Chern number has been realized to significantly improve the transmission capacity of topological waveguides…
cond-mat.mes-hall2024
Aperiodic-quasiperiodic-periodic properties and topological transitions in twisted nested Moiré patterns
Peng Peng, Yuchen Peng, Aoqian Shi +3
The Moiré patterns generated by altering the structural parameters in a two or more layers of periodic materials, including single-layer structure, interlayer stacking, and twisti…