Non-equilibrium relaxation and critical aging for driven Ising lattice gases

Details Non-equilibrium relaxation and critical aging for driven Ising lattice gases Non-equilibrium relaxation and critical aging for driven Ising lattice gases

2011-12-07

arxiv.org/abs/1112.1605v2

Phys. Rev. Lett. 108 (2012) 110602

Physics

Condensed Matter

Statistical Mechanics

5 pages, 4 figures included; to appear in Phys. Rev. Lett. (2012)

Scientific paper

10.1103/PhysRevLett.108.110602

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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