Phonon hydrodynamics is an exotic phonon transport phenomenon that challenges the
conventional understanding of diffusive phonon scattering in crystalline solids. It features a …

In this paper, we develop a method for finding models of heat conduction via machine
learning. Integrating machine learning and the conservation-dissipation formulism (CDF) of …

Second sound is known as the thermal transport regime where heat is carried by
temperature waves. Its experimental observation was previously restricted to a small number …

We present a formalism to solve the phonon Boltzmann transport equation (BTE) for finite
Knudsen numbers that supplies a hydrodynamic heat transport equation similar to the …

Heat management is crucial in the design of nanoscale devices as the operating
temperature determines their efficiency and lifetime. Past experimental and theoretical works …

According to Fourier's law, a temperature difference across a material results in a linear
temperature profile and a thermal conductance that decreases inversely proportional to the …

The hydrodynamic heat transport equation with appropriate boundary conditions and ab
initio calculated coefficients is validated by comparing the corresponding analytical and …

With wave-packet propagation simulations and heat flux estimation via molecular dynamics,
we show that the heat flux radial distribution in silicon nanowires can be described by a …

Heat conduction in solid materials may behave like fluid dynamics when normal (N)
scattering dominates phonon transport. In this hydrodynamic regime, the heat vortices have …

We apply a recently developed method for solving the linearized phonon Boltzmann
equation to study the hydrodynamic thermal transport in dielectrics in the collective limit, ie …