Thermostatistics of a single particle on a granular dimer lattice: influence of defects (2008)
Combs, K., Olafsen, J. S., Burdeau, A., Viot, P.
We study the thermostatistical fluctuations of a single Delrin monomer on a granular lattice of dimer particles using both experiment and simulation. The goal is to examine the collision frequency,...
Equilibrium adsorption on a random site surface (2008)
Talbot, J., Tarjus, G., Viot, P.
We examine the reversible adsorption of spherical solutes on a random site surface in which the adsorption sites are uniformly and randomly distributed on a substrate. Each site can be occupied by...
Chirality and $Z_2$ vortices in an Heisenberg spin model on the kagom\'e lattice (2007)
Lhuillier, C., Messio, L., Pierre, L., Viot, P.
The phase diagram of the classical \jj model on the \kag lattice is investigated using extensive \mc simulations. In a realistic range of parameters, this model has a low-temperature chiral-ordered...
An exactly solvable model of reversible adsorption on a disordered substrate (2007)
Talbot, J., Tarjus, G., Viot, P.
We consider the reversible adsorption of dimers on a regular lattice, where adsorption occurs on a finite fraction of sites selected randomly. By comparing this system to the pure system where all...
Gabrielli, A., Joyce, M., Marcos, B., Viot, P.
A well known argument in cosmology gives that the power spectrum (or structure function) $P(k)$ of mass density fluctuations produced from a uniform initial state by physics which is causal (i.e....
Angular velocity distribution of a granular planar rotator in a thermalized bath (2006)
Piasecki, J., Talbot, J., Viot, P.
The kinetics of a granular planar rotator with a fixed center undergoing inelastic collisions with bath particles is analyzed both numerically and analytically by means of the Boltzmann equation. The...
Application of the Gillespie algorithm to a granular intruder particle (2006)
We show how the Gillespie algorithm, originally developed to describe coupled chemical reactions, can be used to perform numerical simulations of a granular intruder particle colliding with...
Thermalization of an anisotropic granular particle (2006)
We investigate the dynamics of a needle in a two-dimensional bath composed of thermalized point particles. Collisions between the needle and points are inelastic and characterized by a normal...
Exact solution of a one-dimensional Boltzmann equation for a granular tracer particle (2006)
Piasecki, J., Talbot, J., Viot, P.
We consider a one-dimensional system consisting of a granular tracer particle of mass $M$ in a bath of thermalized particles each of mass $m$. When the mass ratio, $M/m$, is equal to the coefficient...
Micoulaut, M., Mechkov, S., Retraint, D., Viot, P., Francois, M.
The behavior of an ultrasonic shot peening process is observed and analyzed by using a model of inelastic hard spheres in a gravitational field that are fluidized by a vibrating bottom wall...
Power law in the angular velocity distribution of a granular needle (2005)
We show how inelastic collisions induce a power law with exponent -3 in the decay of the angular velocity distribution of anisotropic particles with sufficiently small moment of inertia. We...
Tarjus, G., Kivelson, S. A., Nussinov, Z., Viot, P.
One of the most spectacular phenomena in physics in terms of dynamical range is the glass transition and the associated slowing down of flow and relaxation with decreasing temperature. That it occurs...
Granular discorectangle in a thermalized bath of hard disks (2004)
Gomart, H., Talbot, J., Viot, P.
By using the Enskog-Boltzmann approach, we study the steady-state dynamics of a granular discorectangle placed in a two-dimensional bath of thermalized hard disks. Hard core collisions are assumed...
Thermalization of an anisotropic granular particle (2004)
We investigate the dynamics of a needle in a two-dimensional bath composed of thermalized point particles. Collisions between the needle and points are inelastic and characterized by a normal...
Thermalization of an anisotropic granular particle (2004)
We investigate the dynamics of a needle in a two-dimensional bath composed of thermalized point particles. Collisions between the needle and points are inelastic and characterized by a normal...
Thermalization of an anisotropic granular particle (2003)
We investigate the dynamics of a needle in a two-dimensional bath composed of thermalized point particles. Collisions between the needle and points are inelastic and characterized by a normal...
The parking-lot model provides a qualitative description of the main features of the phenomenology of granular compaction. We derive here approximate kinetic equations for this model, equations that...
We apply the statistical mechanical approach based on the ``flat'' measure proposed by Edwards and coworkers to the parking lot model, a model that reproduces the main features of the phenomenology...
Gabrielli, A., Joyce, M., Marcos, B., Viot, P.
A well known argument in cosmology gives that the power spectrum (or structure function) $P(k)$ of mass density fluctuations produced from a uniform initial state by physics which is causal (i.e....
Optimum Monte Carlo Simulations: Some Exact Results (2003)
Talbot, J., Tarjus, G., Viot, P.
We obtain exact results for the acceptance ratio and mean squared displacement in Monte Carlo simulations of the simple harmonic oscillator in $D$ dimensions. When the trial displacement is made...
Langevin dynamics of the Coulomb frustrated ferromagnet: a mode-coupling analysis (2002)
Grousson, M., Krakoviack, V., Tarjus, G., Viot, P.
We study the Langevin dynamics of the soft-spin, continuum version of the Coulomb frustrated Ising ferromagnet. By using the dynamical mode-coupling approximation, supplemented by reasonable...
Locally Preferred Structure and Frustration in Glassforming Liquids: A Clue to Polyamorphism? (2002)
Tarjus, G., Alba-Simionesco, C., Grousson, M., Viot, P., Kivelson, D.
We propose that the concept of liquids characterized by a given locally preferred structure (LPS) could help in understanding the observed phenomenon of polyamorphism. ``True polyamorphism'' would...
Grousson, M., Tarjus, G., Viot, P.
We show by means of a Monte Carlo simulation study that three-dimensional models with long-range frustration display the generic phenomena seen in fragile glassforming liquids. Due to their...
Wall-Enhanced Convection in Vibrofluidized Granular Systems (2001)
An event-driven molecular dynamics simulation of inelastic hard spheres contained in a cylinder and subject to strong vibration reproduces accurately experimental results[1] for a system of...
A Monte Carlo study of the three-dimensional Coulomb frustrated Ising ferromagnet (2001)
Grousson, M., Tarjus, G., Viot, P.
We have investigated by Monte-Carlo simulation the phase diagram of a three-dimensional Ising model with nearest-neighbor ferromagnetic interactions and small, but long-range (Coulombic)...
Comment on ``Stripe Glasses: Self-Generated Randomness in a Uniformly Frustrated System'' (2001)
Grousson, M., Tarjus, G., Viot, P.
comment on J. Schmalian and P. Wolynes, Phys. Rev. Lett. {\bf 85}, 836 (2000).
Aging and response properties in the parking-lot model (2000)
Talbot, J., Tarjus, G., Viot, P.
An adsorption-desorption (or parking-lot) model can reproduce qualitatively the densification kinetics and other features of a weakly vibrated granular material. Here we study the the two-time...
Grousson, M., Tarjus, G., Viot, P.
We present a theoretical study of the phase diagram of a frustrated Ising model with nearest-neighbor ferromagnetic interactions and long-range (Coulombic) antiferromagnetic interactions. For nonzero...
The adsorption-desorption model and its application to vibrated granular materials (1999)
Talbot, J., Tarjus, G., Viot, P.
We investigate both analytically and by numerical simulation the kinetics of a microscopic model of hard rods adsorbing on a linear substrate, a model which is relevant for compaction of granular...
From Car Parking to Protein Adsorption: An Overview of Sequential Adsorption Processes (1999)
Talbot, J., Tarjus, G., Van Tassel, P. R., Viot, P.
The adsorption or adhesion of large particles (proteins, colloids, cells, >...) at the liquid-solid interface plays an important role in many diverse applications. Despite the apparent complexity of...
Sluggish Kinetics in the Parking Lot Model (1998)
Talbot, J., Tarjus, G., Viot, P.
We investigate, both analytically and by computer simulation, the kinetics of a microscopic model of hard rods adsorbing on a linear substrate. For a small, but finite desorption rate, the system...
Microphase Separation and modulated phases in a Coulomb frustrated Ising ferromagnet (1998)
We study a 3-dimensional Ising model in which the tendency to order due to short-range ferromagnetic interactions is frustrated by competing long-range (Coulombic) interactions. Complete...
Exact Solution and Multifractal Analysis of a Multivariable Fragmentation Model (1997)
Boyer, D., Tarjus, G., Viot, P.
Most theoretical kinetic approaches proposed so far to describe fragmentation processes rely on the assumption that the fragments can be characterized by a unique relevant variable, for example their...
Exact Solution and Multifractal Analysis of a Multivariable Fragmentation Model (1997)
Boyer, D., Tarjus, G., Viot, P.
Most theoretical kinetic approaches proposed so far to describe fragmentation processes rely on the assumption that the fragments can be characterized by a unique relevant variable, for example their...
Exact Solution and Multifractal Analysis of a Multivariable Fragmentation Model (1997)
Boyer, D., Tarjus, G., Viot, P.
Most theoretical kinetic approaches proposed so far to describe fragmentation processes rely on the assumption that the fragments can be characterized by a unique relevant variable, for example their...