Diffusion driven by temperature or concentration gradients is a fundamental mechanism of
energy and mass transport that inherently differs from wave propagation in both physical …

Thermal transport is a fundamental mechanism of energy transfer process quite distinct from
wave propagation phenomena. It can be manipulated well beyond the possibilities offered …

Compared with conventional topological insulator that carries topological state at its
boundaries, the higher-order topological insulator exhibits lower-dimensional gapless …

We propose a quasi-one-dimensional non-Hermitian Creutz ladder with an entirely flat
spectrum by introducing alternating gain and loss components while maintaining inversion …

We investigate the non-Hermitian Su-Schrieffer-Heeger (SSH) model on Bethe lattice,
revealing a novel localization phenomenon coined inner non-Hermitian skin effect. This …

Convection offers a dynamic and flexible approach to achieving a variety of alternative
physical phenomena beyond pure conduction. Here, we demonstrate that thermal …

We theoretically investigate a tunable non-Hermitian skin effect in systems with gain and
loss and find that the bipolar (quadripolar) non-Hermitian skin effect is characterized by …

Diffusion metamaterials with artificial spatial structures have significant potential in
controlling energy and mass transfer. Those static structures may lead to functionality and …

In this work, we develop a unique and efficient metamaterial device known as the
“hydrodynamic evener,” which can stabilize a flow field rapidly when a transition through …

Since ancient times, energy has always been one of the core needs for human
development. Over the past few centuries, people have developed and used various …