Topological photonics is a rapidly emerging field of research in which geometrical and
topological ideas are exploited to design and control the behavior of light. Drawing …

Pursuing topological phases in natural and artificial materials is one of the central topics in
modern physical science and engineering. In classical magnetic systems, spin waves (or …

Defect modes in two-dimensional periodic photonic structures have found use in diverse
optical devices. For example, photonic crystal cavities confine optical modes to …

Abstract The Su–Schrieffer–Heeger (SSH) model, which captures the most striking transport
properties of the conductive organic polymer trans-polyacetylene, provides perhaps the …

Topology and disorder have a rich combined influence on quantum transport. To probe their
interplay, we synthesized one-dimensional chiral symmetric wires with controllable disorder …

Higher-order topology realizes topologically robust corner modes as a manifestation of
nontriviality. We theoretically propose non-Hermitian skin effects which stem from the …

Disorder and non-Hermiticity dramatically impact the topological and localization properties
of a quantum system, giving rise to intriguing quantum states of matter. The rich interplay of …

Topological insulators are crystalline solids with supposedly very special properties. If
stumbling upon such a crystal, which is possible because topological insulators are known …

We address the breakdown of the bulk-boundary correspondence observed in non-
Hermitian systems, where open and periodic systems can have distinct phase diagrams …

We introduce novel higher-order topological phases of matter in chiral-symmetric systems
(class AIII of the tenfold classification), most of which would be misidentified as trivial by …