Depending on its details, the electroweak phase transition may explain the observed baryon asymmetry in the Universe. Although static equilibrium properties such as the phase structure of the theory have been determined to high accuracy with numerical lattice simulations, much less is known about non-equilibrium dynamics, or even real-time correlators in equilibrium. The reason is that to calcu...

We employ Monte Carlo simulations to study a stochastic Lotka-Volterra model on a two-dimensional square lattice with periodic boundary conditions. If the (local) prey carrying capacity is finite, there exists an extinction threshold for the predator population that separates a stable active two-species coexistence phase from an inactive state wherein only prey survive. Holding all other rates ...

– We consider a lattice gas model which in addition to the canonical nearest neighbor pair interatomic interaction accounts for a many-body interaction inside atomic trios. Interactions of this kind arise in the coherent strained epitaxy and were recently used by us to describe some surface phenomena. With the use of the Monte Carlo simulation we show that in two dimensions the model at low tem...

Spin glasses are frustrated magnetic systems due to a random distribution of ferroand antiferromagnetic interactions. An experimental three dimensional (3d) spin glass exhibits a second order phase transition to a low temperature spin glass phase regardless of the spin dimensionality. In addition, the low temperature phase of Ising and Heisenberg spin glasses exhibits similar non-equilibrium dy...

Abstract. In this paper, the method of large-scale averaging is used to develop two different oneequation models describing dispersion in heterogeneous porous media. The first model represents the case of large-scale mass equilibrium, while the second represents the asymptotic behavior of a twoequation model obtained by large-scale averaging. It is shown that a one-equation, non-equilibrium mod...

From the non-equilibrium critical relaxation study of the two-dimensional Ising model, the dynamical critical exponent z is estimated to be 2.165 ± 0.010 for this model. The relaxation in the ordered phase of this model is consistent with exp(− √ t/τ ) behavior. The interface energy of the threedimensional Ising model is studied and the critical exponent of the correlation length ν and the crit...

Contents 1. Introduction 2. The classical model 3. Existence of equilibrium 3.1 Equilibrium and quasi-equilibrium of abstract economies 3.2 Application to quasi-equilibrium existence for private ownership economies 3.3 From quasi-equilibrium to equilibrium 4. Optimality properties of equilibrium 4.1 Optimality, core and limit-core concepts 4.2 Non-emptiness results 4.3 Price-decentralization re...

In this work a new mathematical model, based on non-equilibrium conditions, describing the dynamic adsorption of proteins in columns packed with spherical adsorbent particles is used to study the performance of chromatographic systems. Simulations of frontal chromatography, including axial dispersion, for non-equilibrium systems with non-linear adsorption isotherms are made and compared to thos...

computable general equilibrium models are known as a powerful instrument in economic analyses and widely have been used in order to evaluate trade liberalization effects. the purpose of this study was to provide the impacts of trade openness on pharmaceutical industry using cge model.using a computable general equilibrium model in this study, the effects of decrease in tariffs as a symbol of tr...

the objective of this work is to analyze the effects of decrease in water subsidies (increase in the price of the water) on various economic sectors in order to promote the conservation of this resource based on the actual price of water. but over the past decades, various subsidizing methods hold the cost of water down. on the other hand, the indiscriminate use of these resources led the gover...