Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Mobilia M"'
Publikováno v:
EPL (Europhysics Letters) Vol. 85, 48003 (2009)
In certain parliamentary democracies, there are two major parties that move in and out of power every few elections, and a third minority party that essentially never governs. We present a simple model to account for this phenomenon, in which minorit
Externí odkaz:
http://arxiv.org/abs/0812.1296
Publikováno v:
J. Stat. Mech. P08029, (2007)
We study the voter model with a finite density of zealots--voters than never change opinion. For equal numbers of zealots of each species, the distribution of magnetization (opinions) is Gaussian in the mean-field limit as well as in one and two dime
Externí odkaz:
http://arxiv.org/abs/0706.2892
Publikováno v:
J. Phys.: Condens. Matter 19, 065139 (2007)
We study a stochastic lattice predator-prey system by means of Monte Carlo simulations that do not impose any restrictions on the number of particles per site, and discuss the similarities and differences of our results with those obtained for site-r
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606809
Publikováno v:
Phys. Rev. E 74, 031906 (2006)
We consider the influence of disorder on the non-equilibrium steady state of a minimal model for intracellular transport. In this model particles move unidirectionally according to the \emph{totally asymmetric exclusion process} (TASEP) and are coupl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604356
Publikováno v:
Phys. Rev. E 71, 056129 (2005)
We present the exact solution for the full dynamics of a nonequilibrium spin chain and its dual reaction-diffusion model, for arbitrary initial conditions. The spin chain is driven out of equilibrium by coupling alternating spins to two thermal baths
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412576
Publikováno v:
J. Phys. A: Math. Gen. 37, L407-L413 (2004)
The one-dimensional Ising model is easily generalized to a \textit{genuinely nonequilibrium} system by coupling alternating spins to two thermal baths at different temperatures. Here, we investigate the full time dependence of this system. In particu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405375
Autor:
Mobilia, M., Redner, S.
Publikováno v:
Phys. Rev. E 68, 046106 (2003)
We introduce a simple model of opinion dynamics in which binary-state agents evolve due to the influence of agents in a local neighborhood. In a single update step, a fixed-size group is defined and all agents in the group adopt the state of the loca
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306061
Publikováno v:
J. Phys. A 36, 4533-4542 (2003)
We investigate irreversible aggregation in which monomer-monomer, monomer-cluster, and cluster-cluster reactions occur with constant but distinct rates K_{MM}, K_{MC}, and K_{CC}, respectively. The dynamics crucially depends on the ratio gamma=K_{CC}
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301276
Autor:
Mobilia, M., Bares, P. -A.
We study a one-dimensional class of reaction-diffusion models on a $10-$parameters manifold. The equations of motion of the correlation functions close on this manifold. We compute exactly the long-time behaviour of the density and correlation functi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101253
Autor:
Mobilia, M., Bares, P. -A.
In this work, we consider a diffusive two-species d-dimensional model and study it in great details. Two types of particles, with hard-core, diffuse symmetrically and cross each other. For arbitrary dimensions, we obtain the exact density, the instan
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101192