The law of reciprocity in acoustics and elastodynamics codifies a relation of symmetry
between action and reaction in fluids and solids. In its simplest form, it states that the …

Phononic materials are periodically arranged building blocks in the form of material
properties, geometries, and/or boundary conditions. This synthetic architecture makes …

Linear acoustic metamaterials (LAMs) are widely used to manipulate sound; however, it is
challenging to obtain bandgaps with a generalized width (ratio of the bandgap width to its …

The detection of acoustic signals is of relevance for a range of practical applications, for
example in medical diagnostics. However, whereas rectification of electric current and other …

Switches and rectification devices are fundamental componentsused for controlling the flow
of energy in numerous applications. Thermal,,, and acoustic,,, rectifiers have been proposed …

Nonlinear acoustic metamaterials (NAMs) exhibit extraordinary properties for low-frequency
and broadband vibration mitigation. Despite the increasing attention received, exotic …

We numerically demonstrate a simple one-dimensional model of an acoustic diode formed
by coupling a superlattice with a strongly nonlinear medium. The first numerical observation …

Nonreciprocal wave propagation typically requires strong nonlinear materials to break time
reversal symmetry. Here, we utilized a sonic-crystal-based acoustic diode that had broken …

Solitary waves are lumps of energy. We consider the study of dynamical solitary waves,
meaning cases where the energy lumps are moving, as opposed to topological solitary …

A mechanism for asymmetric transport which is based on parity-time-symmetric
nonlinearities is presented. We show that in contrast to the case of conservative …