Topological phenomena at defects in acoustic, photonic and solid-state lattices

ZK Lin, Q Wang, Y Liu, H Xue, B Zhang… - Nature Reviews …, 2023 - nature.com
There are two prominent applications of the mathematical concept of topology to the physics
of materials: band topology, which classifies different topological insulators and semimetals …

Topological active matter

S Shankar, A Souslov, MJ Bowick, MC Marchetti… - Nature Reviews …, 2022 - nature.com
In active matter systems, individual constituents convert energy into non-conservative forces
or motion at the microscale, leading to morphological features and transport properties that …

Non-Hermitian boundary modes and topology

DS Borgnia, AJ Kruchkov, RJ Slager - Physical review letters, 2020 - APS
We consider conditions for the existence of boundary modes in non-Hermitian systems with
edges of arbitrary codimension. Through a universal formulation of formation criteria for …

Quantization of fractional corner charge in -symmetric higher-order topological crystalline insulators

WA Benalcazar, T Li, TL Hughes - Physical Review B, 2019 - APS
In the presence of crystalline symmetries, certain topological insulators present a filling
anomaly: a mismatch between the number of electrons in an energy band and the number of …

Bulk–disclination correspondence in topological crystalline insulators

Y Liu, S Leung, FF Li, ZK Lin, X Tao, Y Poo, JH Jiang - Nature, 2021 - nature.com
Most natural and artificial materials have crystalline structures from which abundant
topological phases emerge,,,,–. However, the bulk–edge correspondence—which has been …

Topological phononic metamaterials

W Zhu, W Deng, Y Liu, J Lu, HX Wang… - Reports on Progress …, 2023 - iopscience.iop.org
The concept of topological energy bands and their manifestations have been demonstrated
in condensed matter systems as a fantastic paradigm toward unprecedented physical …

Topological classification of crystalline insulators through band structure combinatorics

J Kruthoff, J De Boer, J Van Wezel, CL Kane, RJ Slager - Physical Review X, 2017 - APS
We present a method for efficiently enumerating all allowed, topologically distinct, electronic
band structures within a given crystal structure in all physically relevant dimensions. The …

Classification of topological quantum matter with symmetries

CK Chiu, JCY Teo, AP Schnyder, S Ryu - Reviews of Modern Physics, 2016 - APS
Topological materials have become the focus of intense research in recent years, since they
exhibit fundamentally new physical phenomena with potential applications for novel devices …

Topological Wannier cycles induced by sub-unit-cell artificial gauge flux in a sonic crystal

ZK Lin, Y Wu, B Jiang, Y Liu, SQ Wu, F Li, JH Jiang - Nature Materials, 2022 - nature.com
Gauge fields play a major role in understanding quantum effects. For example, gauge flux
insertion into single unit cells is crucial towards detecting quantum phases and controlling …