A second wave of topological phenomena in photonics and acoustics

X Zhang, F Zangeneh-Nejad, ZG Chen, MH Lu… - Nature, 2023 - nature.com
Light and sound are the most ubiquitous forms of waves, associated with a variety of
phenomena and physical effects such as rainbows and echoes. Light and sound, both …

Topological materials discovery from crystal symmetry

BJ Wieder, B Bradlyn, J Cano, Z Wang… - Nature Reviews …, 2022 - nature.com
Topological materials discovery has evolved at a rapid pace over the past 15 years following
the identification of the first nonmagnetic topological insulators (TIs), topological crystalline …

Topological complex-energy braiding of non-Hermitian bands

K Wang, A Dutt, CC Wojcik, S Fan - Nature, 2021 - nature.com
Abstract Effects connected with the mathematical theory of knots emerge in many areas of
science, from physics, to biology. Recent theoretical work discovered that the braid group …

Observation of acoustic non-Hermitian Bloch braids and associated topological phase transitions

Q Zhang, Y Li, H Sun, X Liu, L Zhao, X Feng, X Fan… - Physical Review Letters, 2023 - APS
Topological features embedded in ancient braiding and knotting arts endow significant
impacts on our daily life and even cutting-edge science. Recently, fast growing efforts are …

Encyclopedia of emergent particles in three-dimensional crystals

ZM Yu, Z Zhang, GB Liu, W Wu, XP Li, RW Zhang… - Science Bulletin, 2022 - Elsevier
The past decade has witnessed a surge of interest in exploring emergent particles in
condensed matter systems. Novel particles, emerged as excitations around exotic band …

[HTML][HTML] The 2021 quantum materials roadmap

F Giustino, JH Lee, F Trier, M Bibes… - Journal of Physics …, 2021 - iopscience.iop.org
In recent years, the notion of'Quantum Materials' has emerged as a powerful unifying
concept across diverse fields of science and engineering, from condensed-matter and …

[HTML][HTML] Hyperbolic band topology with non-trivial second Chern numbers

W Zhang, F Di, X Zheng, H Sun, X Zhang - Nature Communications, 2023 - nature.com
Topological band theory establishes a standardized framework for classifying different types
of topological matters. Recent investigations have shown that hyperbolic lattices in non …

Experimental observation of non-Abelian topological acoustic semimetals and their phase transitions

B Jiang, A Bouhon, ZK Lin, X Zhou, B Hou, F Li… - Nature Physics, 2021 - nature.com
Topological phases of matter connect mathematical principles to real materials, and may
shape future electronic and quantum technologies. So far, this discipline has mostly focused …

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 …

Non-Abelian Thouless pumping in photonic waveguides

YK Sun, XL Zhang, F Yu, ZN Tian, QD Chen, HB Sun - Nature Physics, 2022 - nature.com
Thouless pumping enables topological transport and the direct measurement of topological
invariants. So far, realizations of Thouless pumping rely on the adiabatic evolution of a …