Observation of symmetry-protected zero modes in topolectrical circuits

Higher-order topological insulators are a new class of topological phases of matter, originally conceived for electrons in solids. It has been suggested that the Z_{N} Berry phase (Berry phase quantized into 2π/N) is a useful tool to characterize the symmetry-protected topological states, whereas th...

Full description

Bibliographic Details
Main Authors: Huanhuan Yang, Z.-X. Li, Yuanyuan Liu, Yunshan Cao, Peng Yan
Format: Article
Language:English
Published: American Physical Society 2020-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.022028