128 citations · 515 across the 21 of their papers we have counts for
11 papers · 1 filter
Thermodynamic precision of a chain of motors: the difference between phase and noise correlation
Giulio Costantini, Andrea Puglisi
Inspired by recent experiments on fluctuations of the flagellar beating in sperms and C. reinhardtii, we investigate the precision of phase fluctuations in a system of nearest-neig…
Probability distribution functions of sub- and super-diffusive systems
Fabio Cecconi, Giulio Costantini, Alessandro Taloni +1
We study the anomalous transport in systems of random walks (RW's) on comb-like lattices with fractal sidebranches, showing subdiffusion, and in a system of Brownian particles driv…
Glassy features of crystal plasticity
Arttu Lehtinen, Giulio Costantini, Mikko J. Alava +2
Crystal plasticity occurs by deformation bursts due to the avalanche-like motion of dislocations. Here we perform extensive numerical simulations of a three-dimensional dislocation…
Thermally induced directed currents in hard rod systems
Fabio Cecconi, Giulio Costantini, Umberto Marini Bettolo Marconi
We study the non equilibrium statistical properties of a one dimensional hard-rod fluid undergoing collisions and subject to a spatially non uniform Gaussian heat-bath and periodic…
Noise Rectification and Fluctuations of an Asymmetric Inelastic Piston
G. Costantini, U. Marini Bettolo Marconi, A. Puglisi
We consider a massive inelastic piston, whose opposite faces have different coefficients of restitution, moving under the action of an infinitely dilute gas of hard disks maintaine…
Velocity fluctuations in a one dimensional Inelastic Maxwell model
G. Costantini, U. Marini Bettolo Marconi, A. Puglisi
We consider the velocity fluctuations of a system of particles described by the Inelastic Maxwell Model. The present work extends the methods, previously employed to obtain the one…
Transport of a heated granular gas in a washboard potential
Giulio Costantini, Fabio Cecconi, Umberto Marini-Bettolo-Marconi
We study numerically the motion of a one dimensional array of Brownian particles in a washboard potential, driven by an external stochastic force and interacting via short range re…
A Granular Brownian Ratchet Model
Giulio Costantini, Umberto Marini Bettolo Marconi, Andrea Puglisi
We show by numerical simulations that a non rotationally symmetric body, whose orientation is fixed and whose center of mass can only slide along a rectilinear guide, under the eff…
The inelastic Takahashi hard-rod gas
Umberto Marini-Bettolo-Marconi, Maurizio Natali, Giulio Costantini +1
We study a one-dimensional fluid of hard-rods interacting each other via binary inelastic collisions and a short ranged square-well potential. Upon tuning the depth and the sign of…
Bistable Clustering in Driven Granular Mixtures
Giulio Costantini, Daniela Paolotti, Ciro Cattuto +1
The behavior of a bidisperse inelastic gas vertically shaken in a compartmentalized container is investigated using two different approaches: the first is a mean-field dynamical mo…
Deterministic ratchets: route to diffusive transport
M. Borromeo, F. Marchesoni, G. Costantini
The rectification efficiency of an underdamped ratchet operated in the adiabatic regime increases according to a scaling current-amplitude curve as the damping constant approaches…