The study of classical wave physics has been reinvigorated by incorporating the concept of
the geometric phase, which has its roots in optics, and topological notions that were …

Recently, we witnessed a tremendous effort to conquer the realm of acoustics as a possible
playground to test with topologically protected sound wave propagation. In this article, we …

Acoustic metamaterial science is an emerging field at the frontier of modern acoustics. It
provides a prominent platform for acoustic wave control in subwavelength-sized …

Mechanical metamaterials are a group of specially designed periodic material structures that
exhibit properties not found in naturally occurring materials. These structures often consist of …

First the significance of topology in physics and topological sound waves is introduced. Then
acoustical quantum Hall effect is described with theories and applications. These are …

The discovery of topological phases is a remarkable development with profound impact in
condensed matter physics. Such systems host robust unidirectional edge states immune to …

Advances in topological acoustics are leading to potential development for noise
attenuation, ultrasonic imaging, sound manipulation, and information delivering, etc …