387 citations · 3.4k across the 93 of their papers we have counts for
14 papers · 1 filter
Dispersion of passive tracers in velocity field with non delta-correlated noise
P. Castiglione, A. Crisanti
The diffusive properties in velocity fields whose small scales are parameterized by non -correlated noise is investigated using multiscale technique. The analytical expression o…
A Soluble Phase Field Model
Umberto Marini Bettolo Marconi, Andrea Crisanti, Giulia Iori
The kinetics of an initially undercooled solid-liquid melt is studied by means of a generalized Phase Field model, which describes the dynamics of an ordering non-conserved field p…
Growth Kinetics in a Phase Field Model with Continuous Symmetry
U. Marini Bettolo Marconi, A. Crisanti
We discuss the static and kinetic properties of a Ginzburg-Landau spherically symmetric model recently introduced (Phys. Rev. Lett. {\bf 75}, 2176, (1995)) in order to gener…
Broken ergodicity and glassy behavior in a deterministic chaotic map
A. Crisanti, M. Falcioni, A. Vulpiani
A network of elements is studied in terms of a deterministic globally coupled map which can be chaotic. There exists a range of values for the parameters of the map where the n…
Diffusion Limited Growth in Systems with Continuous Symmetry
U. Marini Bettolo Marconi, A. Crisanti
To study the effect of slow heat conduction during phase separation, we discuss the relaxation properties of an symmetric model with Phase field type dynamics, where a non c…
Eddy diffusivities in scalar transport
L. Biferale, A. Crisanti, M. Vergassola +1
Standard and anomalous transport in incompressible flow is investigated using multiscale techniques. Eddy-diffusivities emerge from the multiscale analysis through the solution of…