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 …

There are two prominent applications of the mathematical concept of topology to the physics
of materials: band topology, which classifies different topological insulators and semimetals …

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 …

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 …

The concept of topological energy bands and their manifestations have been demonstrated
in condensed matter systems as a fantastic paradigm toward unprecedented physical …

Topological phases of matter have been extensively investigated in solid-state materials and
classical wave systems with integer dimensions. However, topological states in non-integer …

The heat dissipation issue has now become one of the most important bottlenecks for power
electronics due to the rapid increase in power density and working frequency. Towards the …

The hallmark of topological insulators (TIs) is the scatter-free propagation of waves in
topologically protected edge channels. This transport is strictly chiral on the outer edge of …

Building upon the bulk-boundary correspondence in topological phases of matter,
disclinations have recently been harnessed to trap fractionally quantized density of states …

Disclinations—topological defects ubiquitously existing in various materials—can reveal the
intrinsic band topology of the hosting material through the bulk-disclination correspondence …