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 …

We aim at providing a global perspective on electromagnetic nonreciprocity and clarifying
confusions that arose in recent developments of the field. We provide a general definition of …

Within a time span of 15 years, acoustic metamaterials have emerged from academic
curiosity to become an active field driven by scientific discoveries and diverse application …

Interest in new thermal diodes, regulators, and switches has been rapidly growing because
these components have the potential for rich transport phenomena that cannot be achieved …

The unique conduction properties of condensed matter systems with topological order have
recently inspired a quest for the similar effects in classical wave phenomena. Acoustic …

What is — and what is not — an optical isolator | Nature Photonics Skip to main content Thank
you for visiting nature.com. You are using a browser version with limited support for CSS. To …

Acoustic isolation and nonreciprocal sound transmission are highly desirable in many
practical scenarios. They may be realized with nonlinear or magneto-acoustic effects, but …

This tutorial provides an intuitive and concrete description of the phenomena of
electromagnetic nonreciprocity that will be useful for readers with engineering or physics …

Unidirectional devices that pass acoustic energy in only one direction have numerous
applications and, consequently, have recently received significant attention. However, for …

We propose how to achieve nonreciprocal quantum entanglement of light and motion and
reveal its counterintuitive robustness against random losses. We find that by splitting the …