Sergio Caracciolo, Andrea Gambassi, Massimiliano Gubinelli and Andrea Pelissetto
In a recent Letter Albano and Saracco study the dynamic critical behavior of some anisotropic driven lattice gases by Monte Carlo (MC) simulations. In this Comment we point out that the Ansätze they use to relate the measured scaling exponents with the critical exponents analytically computed within different field-theoretical approaches do not take properly into account the strongly anisotropic nature of the phase transition, by implicitly assuming $z = z_{\bot} = z_{\parallel}$. As a consequence, at variance with the claims by the authors, their MC data are not conclusive to determine which one of the field theories proposed in the literature correctly describes the universal properties of the phase transition in these lattice gases.
Sergio Caracciolo, Andrea Gambassi, Massimiliano Gubinelli and Andrea Pelissetto. Comment on “Dynamic behavior of anisotropic non-equilibrium driving lattice gases”. Papers of Massimiliano Gubinelli, 2003, version 1. https://mgubi.org/papers/paper/driven-lattice-gas-comment/
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