12 citations · 21 across the 2 of their papers we have counts for
3 papers
cond-mat.stat-mech1999★ 9 cited
Criticality of the "critical state" of granular media: Dilatancy angle in the tetris model
M. Piccioni, V. Loreto, S. Roux
The dilatancy angle describes the propensity of a granular medium to dilate under an applied shear. Using a simple spin model (the ``tetris'' model) which accounts for geometrical…
cond-mat.stat-mech1999★ 12 cited
Off-equilibrium dynamics in a singular diffusion model
Federico Corberi, Mario Nicodemi, Marina Piccioni +1
We introduce a schematic non-linear diffusion model where density fluctuations induce a rich out of equilibrium dynamics. The properties of the model are studied by numerical simul…
cond-mat.dis-nn1999
Logarithmic Relaxations in a Random Field Lattice Gas Subject to Gravity
Marina Piccioni, Mario Nicodemi, Serge Galam
A simple lattice gas model with random fields and gravity is introduced to describe a system of grains moving in a disordered environment. Off equilibrium relaxations of bulk densi…