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Photonic Chern insulators made of gyromagnetic hyperbolic metamaterials
Ruei-Cheng Shiu, Hsun-Chi Chan, Hai-Xiao Wang +1
Controlling light propagation using artificial photonic crystals and electromagnetic metamaterials is an important topic in the vibrant field of photonics. Notably, chiral edge sta…
Anomalous Quadrupole Topological Insulators in 2D Nonsymmorphic Sonic Crystals
Zhi-Kang Lin, Hai-Xiao Wang, Zhan Xiong +2
The discovery of quadrupole topology opens a new horizon in the study of topological phenomena. However, the existing experimental realizations of quadrupole topological insulators…
Band topology in classical waves: Wilson-loop approach to topological numbers and fragile topology
Hai-Xiao Wang, Guang-Yu Guo, Jian-Hua Jiang
The rapid development of topological photonics and acoustics calls for accurate understanding of band topology in classical waves, which is not yet achieved in many situations. Her…