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Universal Gaussian behavior of driven lattice gases at short times

Valerio Volpati, Urna Basu, Sergio Caracciolo, and Andrea Gambassi
Phys. Rev. E 96, 052136 – Published 27 November 2017

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 anisotropic order parameter, its autocorrelation, and Binder cumulant are consistent with the prediction of a Gaussian, i.e., noninteracting, effective theory, both for the nonequilibrium lattice gases and, to some extent, their equilibrium counterpart. Such a superuniversal 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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  • Received 24 August 2017

DOI:https://doi.org/10.1103/PhysRevE.96.052136

©2017 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Authors & Affiliations

Valerio Volpati1, Urna Basu2, Sergio Caracciolo3, and Andrea Gambassi2

  • 1Institut de Physique Théorique (IPhT), Université Paris Saclay, CEA, CNRS, F-91191 Gif-sur-Yvette, France
  • 2SISSA–International School for Advanced Studies and INFN, via Bonomea 265, I-34136 Trieste, Italy
  • 3Dipartimento di Fisica and INFN, Università degli Studi di Milano, via Celoria 16, I-20133 Milano, Italy

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Issue

Vol. 96, Iss. 5 — November 2017

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