Nonequilibrium Relaxation and Critical Aging for Driven Ising Lattice Gases

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Date

2012-03-13

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American Physical Society

Abstract

We employ Monte Carlo simulations to study the non-equilibrium relaxation of driven Ising lattice gases in two dimensions. Whereas the temporal scaling of the density auto-correlation function in the non-equilibrium steady state does not allow a precise measurement of the critical exponents, these can be accurately determined from the aging scaling of the two-time auto-correlations and the order parameter evolution following a quench to the critical point. We obtain excellent agreement with renormalization group predictions based on the standard Langevin representation of driven Ising lattice gases.

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Keywords

Physics, Multidisciplinary, Physics, SIZE-SCALING ANALYSIS, PHASE-TRANSITIONS, DIFFUSIVE SYSTEMS, CRITICAL-BEHAVIOR, MONTE-CARLO, FIELD-THEORY, MODEL, STATES

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