186 citations · 1.1k across the 33 of their papers we have counts for
6 papers · 1 filter
Rare events and scaling properties in field-induced anomalous dynamics
R. Burioni, G. Gradenigo, A. Sarracino +2
We show that, in a broad class of continuous time random walks (CTRW), a small external field can turn diffusion from standard into anomalous. We illustrate our findings in a CTRW…
Brownian ratchet in a thermal bath driven by Coulomb friction
A. Gnoli, A. Petri, F. Dalton +4
The rectification of unbiased fluctuations, also known as the ratchet effect, is normally obtained under statistical non-equilibrium conditions. Here we propose a new ratchet mecha…
Einstein relation in superdiffusive systems
Giacomo Gradenigo, Alessandro Sarracino, Dario Villamaina +1
We study the Einstein relation between diffusion and response to an external field in systems showing superdiffusion. In particular, we investigate a continuous time Levy walk wher…
Entropy production in non-equilibrium fluctuating hydrodynamics
Giacomo Gradenigo, Andrea Puglisi, Alessandro Sarracino
Fluctuating entropy production is studied for a set of linearly coupled complex fields. The general result is applied to non-equilibrium fluctuating hydrodynamic equations for coar…
Out-of-equilibrium generalized fluctuation-dissipation relations
Giacomo Gradenigo, Andrea Puglisi, Alessandro Sarracino +2
We discuss fluctuation-dissipation relations valid under general conditions even out of equilibrium. The response function is expressed in terms of unperperturbed correlation funct…
Dynamics of a massive intruder in a homogeneously driven granular fluid
A. Puglisi, A. Sarracino, G. Gradenigo +1
A massive intruder in a homogeneously driven granular fluid, in dilute configurations, performs a memory-less Brownian motion with drag and temperature simply related to the averag…