[PDF] Top 20 Braz. J. Phys. vol.30 número1

... This Special Issue is devoted to a topic that has stimulated great interest and activity in Brazil and around the world: nonequilibrium statistical physics, in particular, stochastic mod[r] ... See full document

... While the models with the two equivalent ab- sorbing states or two equivalent groups of absorbing states belong to the DI universality class, the mod- els with a single absorbing state o[r] ... See full document

... In order to obtain a Monte Carlo (random sampling) approxi- mation for < Q ( E ) > , one actually averages only over a restricted number of microstates, much smaller than.. So, the[r] ... See full document

... We calculated elastic integral, dierential and momentum transfer cross sections in an energy range from 5 eV up to 50 eV and compared our results with available theoretical results and e[r] ... See full document

... This behavior can be correlated with the rst-order irreversible phase transition between the stationary reactive regime and the A -poisoned state observed in the MD model at Y.. 2A (see [r] ... See full document

... On the other hand, if g is an homogeneous quadratic func- tion, like the kinetic energy of the N particles in a nonrelativistic classical gas (L = 3N;r = 2), we re- cover the standard ve[r] ... See full document

... studied miniband ondution properties of suh semiondutor strutures in presene of high hydro-.. stati pressures and ontrolled temperature.[r] ... See full document

... tunneling states in the ground librational level is obtained as a funtion of temperature.. Low.[r] ... See full document

... Probability density of site i about the front from a simulation with an average of 2 particles/site (in the rest frame of the front).. Figure 3.[r] ... See full document

... It was also been veried [13] from Monte Carlo simulations that the ma- jority vote model dened on a square lattice has the same critical behavior, with respect to the static criti- cal e[r] ... See full document

... tions and a oarse-grained eld theory, we show that the late stages of this proess exhibit dynami.. saling, haraterized by a set of saling funtions and exponents.[r] ... See full document

... dependent tensors in a bakground spae, as the gravitational energy-momentum tensor of Deser,T. Grishhuk, Petrov and Popova:[r] ... See full document

... The asymptotic time behavior of the density of particles is derived by mapping the reaction-diusion process into the problem of the reunion of k random walkers bounded to move in a limit[r] ... See full document

... obtained the phase diagram in the T - q plane, where T denotes the temperature and q , the probability of the Kawasaki pro- cess, represents a \competition parameter." The phase diag[r] ... See full document

... in one dimension from the point of view of phase transition and ritial behaviour.. Branhing anni-.[r] ... See full document

... The exat solution of the asymmetri exlusion problem with rst- and sond-lass partiles is.. presented.[r] ... See full document

... In these models the open boundaries can be thought of as inhomogeneities where the order parameter (par- ticle density) is not conserved. Inhomogeneities which conserve the order parameter can be considered on a pe- ... See full document

... In type II superconductors, when the external eld is increased, ux lines are nucleated at the border of the sample and pushed inside by their mutual repul- sion. The resulting ux density gradient, known as the Bean state ... See full document

... experiment is known whih learly reprodues the ritial exponents of direted perolation.. The.[r] ... See full document

... time version of ontat proesses, whih is alled the.. Domany-Kinzel model [2℄ and a related proess alled.[r] ... See full document