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physics.optics2026
Photonic half-semimetals with dual semimetal-insulator topology
Zi-Xuan Gao, Xiaohan Cui, Xiao-Dong Chen +6
Topological wave systems have largely evolved along two distinct paradigms: gapless topological semimetals and gapped topological insulators. While topological semimetals support b…
physics.optics2026★ 1 cited
Emerging Multidimensional Real-Space Topological Structures at Chiral Bound States in the Continuum
Xingqi Zhao, Jingguang Chen, Jiajun Wang +6
As widely studied topological singularities, bound states in the continuum (BICs) have revealed rich physical properties through their momentum-space topology. Here, we reveal and…
physics.optics2023★ 1 cited
Near-field Spin Chern Number Quantized by Real-space Topology of Optical Structures
Tong Fu, Ruo-Yang Zhang, Shiqi Jia +2
The Chern number has been widely used to describe the topological properties of periodic structures in the momentum space. Here, we introduce a real-space spin Chern number for the…