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.
|Titolo:||Universal Gaussian behavior of driven lattice gases at short times|
|Autori:||Volpati, Valerio; Basu, Urna; Caracciolo, Sergio; Gambassi, Andrea|
|Data di pubblicazione:||2017|
|Numero di Articolo:||052136|
|Digital Object Identifier (DOI):||10.1103/PhysRevE.96.052136|
|Appare nelle tipologie:||1.1 Journal article|