Single-atom dynamics of noble-gas elements have been investigated using time-resolved
transmission electron microscopy (TEM), with direct observation providing for a deeper …

To illustrate Boltzmann's construction of an entropy function that is defined for a microstate of
a macroscopic system, we present here the simple example of the free expansion of a one …

A numerical study in a one-dimensional planar formulation of the dynamics of the neutral
gas expansion during nanosecond laser evaporation into a low-pressure background gas is …

We study the response of an infinite system of point particles on the line initially at rest to the
instantaneous release of energy in a localized region. The blast generates shock waves …

We investigate the thermal relaxation of an ideal gas from a nonequilibrium stationary state.
The gas is enclosed between two walls, which initially have different temperatures. After …

In this work, we study the evolution of Boltzmann's entropy in the context of free expansion of
a one-dimensional interacting gas inside a box. Our interacting particle model is a gas of …

The continuous injection of energy at a localized region in space in a stationary gas creates
a shock wave that propagates radially outwards. We study the hydrodynamics of this …

We consider the relaxation of an initial non-equilibrium state in a one-dimensional fluid of
hard rods. Since it is an interacting integrable system, we expect it to reach the Generalized …

We study the classical Toda lattice with domain wall initial conditions, for which left and right
half lattice are in thermal equilibrium but with distinct parameters of pressure, mean velocity …

Integrable systems feature an infinite number of conserved charges and on hydrodynamic
scales are described by generalised hydrodynamics (GHD). This description breaks down …