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arXiv · 1708.07035

On the universal Gaussian behavior of Driven Lattice Gases at short-times

Valerio Volpati·Urna Basu·Sergio Caracciolo·Andrea Gambassi
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Abstract

The dynamic and static critical behaviors of driven and equilibrium lattice gas models are studied in two spatial dimensions. We show that in the short-time regime immediately following a critical quench, the dynamics of the transverse order parameters, auto-correlations, and Binder cumulant are consistent with the prediction of a Gaussian, $i.e.,$ non-interacting, effective theory, both for the equilibrium lattice gas and its nonequilibrium counterparts. Such a "super-universal" behavior is observed only at short times after a critical quench, while the various models display their distinct behaviors in the stationary states, described by the corresponding, known universality classes.

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Valerio Volpati, Urna Basu, Sergio Caracciolo, Andrea Gambassi. 2017-08-23. On the universal Gaussian behavior of Driven Lattice Gases at short-times. https://doi.org/10.1103/physreve.96.052136

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