Realization of a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="double-struck">Z</mml:mi></mml:mrow></mml:math>-Classified Chiral-Symmetric Higher-Order Topological Insulator in a Coupling-Inverted Acoustic Crystal
Dongyi Wang, Yuanchen Deng, Jun Ji, Mourad Oudich, Wladimir A. Benalcazar, Guancong Ma, Yun Jing
Abstract
An experiment shows the existence of $\mathbb{Z}$-classified multiple chiral topological phase, which requires both chiral symmetry and a unique condition where the long-range hopping is stronger than the nearest-neighboring one.
Topics & Concepts
Realization (probability)Symmetry (geometry)Range (aeronautics)PhysicsMathematicsStatisticsMaterials scienceGeometryComposite materialAcoustic Wave Phenomena ResearchTopological Materials and PhenomenaUnderwater Acoustics Research