The Streda formula for Floquet systems: Topological invariants and quantized anomalies from Cesaro summation

LP Gavensky, G Usaj, N Goldman - arXiv preprint arXiv:2408.13576, 2024 - arxiv.org
This work introduces a general theoretical framework, which expresses the topological
invariants of two-dimensional Floquet systems in terms of tractable response functions …

Observation of higher-order time-dislocation topological modes

CH Lee, J Zhang, F Mei, Y Li, J Ma, L Xiao, S Jia - 2024 - researchsquare.com
Topological dislocation modes resulting from the interplay between spatial dislocations and
momentum-space topology have recently attracted significant interest. Here, we theoretically …