492 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT122 papers
- University of Rome Tor VergataIT96 papers
- National Research CouncilLK91 papers
- Harvard UniversityUS59 papers
- Italian Institute of TechnologyIT57 papers
- International Center for Relativistic AstrophysicsIT42 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT36 papers
- Institut des Hautes Études ScientifiquesFR33 papers
- Eindhoven University of TechnologyNL32 papers
- ETH ZurichCH31 papers
- Centre National de la Recherche ScientifiqueFR30 papers
- Villanova UniversityUS30 papers
22 papers · 1 filter
Microcanonical simulated annealing: Massively parallel Monte Carlo simulations with sporadic random-number generation
M. Bernaschi, C. Chilin, L. A. Fernandez +7
Numerical simulations of models and theories that describe complex systems such as spin glasses are becoming increasingly important. Beyond fundamental research, these computationa…
Universal exotic dynamics in critical mesoscopic systems: Simulating the square root of Avogadro's number of spins
Mauro Bisson, Alexandros Vasilopoulos, Massimo Bernaschi +4
We explicitly demonstrate the universality of critical dynamics through unprecedented large-scale GPU-based simulations of two out-of-equilibrium processes, comparing the behavior…
Entropy production of run-and-tumble particles
Matteo Paoluzzi, Andrea Puglisi, Luca Angelani
We analyze the entropy production in run-and-tumble models. After presenting the general formalism in the framework of the Fokker-Planck equations in one space dimension, we derive…
Hydrodynamic effects on the liquid-hexatic transition of active colloids
Giuseppe Negro, Claudio Basilio Caporusso, Pasquale Digregorio +3
We study numerically the role of hydrodynamics in the liquid-hexatic transition of active colloids at intermediate activity, where motility induced phase separation (MIPS) does not…
On the force--velocity relationship of a bundle of rigid living filaments
Alessia Perilli, Carlo Pierleoni, Giovanni Ciccotti +1
In various cellular processes, biofilaments like F-actin and F-tubulin are able to exploit chemical energy associated to polymerization to perform mechanical work against an extern…
Isotropic finite-difference discretization of stochastic conservation laws preserving detailed balance
Mahan Raj Banerjee, Sauro Succi, Santosh Ansumali +1
The dynamics of thermally fluctuating conserved order parameters are described by stochastic conservation laws. Thermal equilibrium in such systems requires the dissipative and sto…
Linear and anomalous front propagation in system with non Gaussian diffusion: the importance of tails
Maurizio Serva, Davide Vergni, Angelo Vulpiani
We investigate front propagation in systems with diffusive and sub-diffusive behavior. The scaling behavior of moments of the diffusive problem, both in the standard and in the ano…
Dynamics of a homogeneous active dumbbell system
Antonio Suma, Giuseppe Gonnella, Gianluca Laghezza +3
We analyse the dynamics of a two dimensional system of interacting active dumbbells. We characterise the mean-square displacement, linear response function and deviation from the e…
Ultrarelativistic Transport Coefficients in Two Dimensions
M. Mendoza, I. Karlin, S. Succi +1
We compute the shear and bulk viscosities, as well as the thermal conductivity of an ultrarelativistic fluid obeying the relativistic Boltzmann equation in 2+1 space-time dimension…
Reaction Spreading on Graphs
R. Burioni, S. Chibbaro, D. Vergni +1
We study reaction-diffusion processes on graphs through an extension of the standard reaction-diffusion equation starting from first principles. We focus on reaction spreading, i.e…
Single to Double Hump Transition in the Equilibrium Distribution Function of Relativistic Particles
M. Mendoza, N. A. M. Araújo, S. Succi +1
We unveil a transition from single peaked to bimodal velocity distribution in a relativistic fluid under increasing temperature, in contrast with a non-relativistic gas, where only…
Phase-field model of long-time glass-like relaxation in binary fluid mixtures
R. Benzi, M. Sbragaglia, M. Bernaschi +1
We present a new phase-field model for binary fluids exhibiting typical signatures of self-glassiness, such as long-time relaxation, ageing and long-term dynamical arrest. The pres…
Combustion dynamics in steady compressible flows
S. Berti, D. Vergni, A. Vulpiani
We study the evolution of a reactive field advected by a one-dimensional compressible velocity field and subject to an ignition-type nonlinearity. In the limit of small molecular d…
Discreteness effects in a reacting system of particles with finite interaction radius
Stefano Berti, Cristobal Lopez, Davide Vergni +1
An autocatalytic reacting system with particles interacting at a finite distance is studied. We investigate the effects of the discrete-particle character of the model on propertie…
Solving the Fokker-Planck kinetic equation on a lattice
Daniele Moroni, Benjamin Rotenberg, Jean-Pierre Hansen +2
We propose a discrete lattice version of the Fokker-Planck kinetic equation along lines similar to the Lattice-Boltzmann scheme. Our work extends an earlier one-dimensional formula…
Lattice formulation of the Fokker-Planck equation
S. Melchionna, S. Succi, J. -P. Hansen
A lattice version of the Fokker-Planck equation (FPE), accounting for dissipative interactions, not resolved on the molecular scale, is introduced. The lattice FPE is applied to th…
Kinetic Theory of Turbulence Modeling: Smallness Parameter, Scaling and Microscopic Derivation of Smagorinsky Model
Santosh Ansumali, Iliya V. Karlin, Sauro Succi
A mean-field approach (filtering out subgrid scales) is applied to the Boltzmann equation in order to derive a subgrid turbulence model based on kinetic theory. It is demonstrated…
Galilean-Invariant Lattice-Boltzmann Models with H-Theorem
Bruce M. Boghosian, Peter J. Love, Peter V. Coveney +3
We demonstrate that the requirement of galilean invariance determines the choice of H function for a wide class of entropic lattice Boltzmann models for the incompressible Navier-S…
Dynamics of trapped two-component Fermi gas: temperature dependence of the transition from collisionless to collisional regime
F. Toschi, P. Vignolo, S. Succi +1
We develop a numerical method to study the dynamics of a two-component atomic Fermi gas trapped inside a harmonic potential at temperature T well below the Fermi temperature Tf. We…
Role of the H theorem in lattice Boltzmann hydrodynamic simulations
Sauro Succi, Iliya V. Karlin, Hudong Chen
In the last decade, minimal kinetic models, and primarily the Lattice Boltmann equation, have met with significant success in the simulation of complex hydrodynamic phenomena, rang…
Explicit finite-difference and direct-simulation-MonteCarlo method for the dynamics of mixed Bose-condensate and cold-atom clouds
P. Vignolo, M. L. Chiofalo, S. Succi +1
We present a new numerical method for studying the dynamics of quantum fluids composed of a Bose-Einstein condensate and a cloud of bosonic or fermionic atoms in a mean-field appro…
Probing the energy bands of a Bose-Einstein condensate in an optical lattice
M. L. Chiofalo, S. Succi, M. P. Tosi
We simulate three experimental methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstein condensate i…