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 photonics has attracted increasing attention in recent years due to the unique
opportunities it provides to manipulate light in a robust way immune to disorder and defects …

The paradigmatic example of a topological phase of matter, the two-dimensional Chern
insulator,,,–, is characterized by a topological invariant consisting of a single integer, the …

Chiral edge states that propagate oppositely at two parallel strip edges are a hallmark
feature of Chern insulators which were first proposed in the celebrated two-dimensional (2D) …

The chiral surface states of Weyl semimetals have an open Fermi surface called a Fermi arc.
At the interface between two Weyl semimetals, these Fermi arcs are predicted to hybridize …

Electromagnetic topological edge states typically are created in photonic systems with
crystalline symmetry and these states emerge because of the topological feature of bulk …

In the past few decades, the discovery of topological matter states has ushered in a new era
in topological physics, providing a robust framework for strategically controlling the transport …

Axion insulators are 3D magnetic topological insulators supporting hinge states and
quantized magnetoelectric effects, recently proposed for detecting dark-matter axionic …

Topological photonic crystals have received considerable attention for their ability to
manipulate and guide light in unique ways. They are typically designed by hand based on …

The field of topological photonics has been on the rise due to its versatility in manufacturing
and its applications as topological lasers or unidirectional waveguides. Contrary to 1D or 2D …