Diffusivity is a key quantity in describing velocity fluctuations in granular materials. These
fluctuations are the basis of many thermodynamic and hydrodynamic models which aim to …

In contrast to normal fluids, a granular fluid under shear supports a steady state with uniform
temperature and density since the collisional cooling can compensate locally for viscous …

The Mpemba effect (a counterintuitive thermal relaxation process where an initially hotter
system may cool down to the steady state sooner than an initially colder system) is studied in …

We describe a proposal for a type of optomechanical system based on a drop of liquid
helium that is magnetically levitated in vacuum. In the proposed device, the drop would …

The physics of granular flows is a fascinating subject because a range of complex collective
behaviour arise from seemingly simple microscopic interactions between the individual …

We study the stochastic motion of an intruder in a dilute driven granular gas. All particles are
coupled to a thermostat, representing the external energy source, which is the sum of …

Sediment tracers are increasingly employed to estimate bed load transport and landscape
evolution rates. Tracer trajectories are dominated by periods of immobility (“waiting times”) …

The Enskog kinetic theory for moderately dense gas-solid suspensions under simple shear
flow is considered as a model to analyze the rheological properties of the system. The …

Diffusion of impurities in a granular gas undergoing homogeneous cooling state is studied.
The results are obtained by solving the Boltzmann-Lorentz equation by means of the …

The behavior of water in concentrated ionic solutions, including supersaturated conditions,
is crucial for numerous material and energy conversion processes and fundamental …