Recent research in topological photonics has not only proposed and realized novel
topological phenomena such as one‐way broadband propagation and robust transport of …

Over the past decade, topology has emerged as a major branch in broad areas of physics,
from atomic lattices to condensed matter. In particular, topology has received significant …

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 …

Rapidly growing demands for fast information processing have launched a race for creating
compact and highly efficient optical devices that can reliably transmit signals without losses …

INTRODUCTION Physical systems that exhibit topological invariants are naturally endowed
with robustness against perturbations, as was recently demonstrated in many settings in …

INTRODUCTION Topological insulators emerged in condensed matter physics and
constitute a new phase of matter, with insulating bulk and robust edge conductance that is …

Originating from the studies of two-dimensional condensed-matter states, the concept of
topological order has recently been expanded to other fields of physics and engineering …

Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

Topological photonics provides a fundamental framework for robust manipulation of light,
including directional transport and localization with built-in immunity to disorder. Combined …

Resonant cavities are essential building blocks governing many wave-based phenomena,
but their geometry and reciprocity fundamentally limit the integration of optical devices. We …