Topological acoustics

H Xue, Y Yang, B Zhang - Nature Reviews Materials, 2022 - nature.com
Topological acoustics is an emerging field that lies at the intersection of condensed matter
physics, mechanical structural design and acoustics engineering. It explores the design and …

Topological metamaterials

X Ni, S Yves, A Krasnok, A Alu - Chemical Reviews, 2023 - ACS Publications
The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

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 …

Experimental characterization of fragile topology in an acoustic metamaterial

V Peri, ZD Song, M Serra-Garcia, P Engeler, R Queiroz… - Science, 2020 - science.org
Symmetries crucially underlie the classification of topological phases of matter. Most
materials, both natural as well as architectured, possess crystalline symmetries. Recent …

Hybrid-order topological insulators in a phononic crystal

Y Yang, J Lu, M Yan, X Huang, W Deng, Z Liu - Physical Review Letters, 2021 - APS
Topological phases, including the conventional first-order and higher-order topological
insulators and semimetals, have emerged as a thriving topic in the fields of condensed …

Various topological phases and their abnormal effects of topological acoustic metamaterials

YF Chen, ZG Chen, H Ge, C He, X Li… - Interdisciplinary …, 2023 - Wiley Online Library
The last 20 years have witnessed growing impacts of the topological concept on the
branches of physics, including materials, electronics, photonics, and acoustics. Topology …

3D hinge transport in acoustic higher-order topological insulators

Q Wei, X Zhang, W Deng, J Lu, X Huang, M Yan… - Physical Review Letters, 2021 - APS
The discovery of topologically protected boundary states in topological insulators opens a
new avenue toward exploring novel transport phenomena. The one-way feature of boundary …

Topological phonon transport in an optomechanical system

H Ren, T Shah, H Pfeifer, C Brendel, V Peano… - Nature …, 2022 - nature.com
Light is a powerful tool for controlling mechanical motion, as shown by numerous
applications in the field of cavity optomechanics. Recently, small scale optomechanical …

Floquet generation of a second-order topological superconductor

AK Ghosh, T Nag, A Saha - Physical Review B, 2021 - APS
We theoretically investigate the Floquet generation of a second-order topological
superconducting (SOTSC) phase hosting Majorana corner modes (MCMs), considering a …

Programmable dual-band acoustic topological insulator with dynamically movable interface states

Y Ge, B Shi, J **a, H Sun, S Yuan, H Xue… - Applied Physics …, 2023 - pubs.aip.org
Topological acoustic interface states in one-dimensional (1D) acoustic topological insulators
(ATIs) are zero-dimensional (0D) topological states localized at an interface. Unlike …