NUMERICAL STUDY OF A NONEQUILIBRIUM INTERFACE MODEL

We have carried out extensive computer simulations of one-dimensional models related to the low noise (solid-on-solid) non-equilibrium inter face of a two-dimensional anchored Toom model with unbiased and biased noise. For the unbiased case the computed fluctuations of the interfa ce in this limit provide new numerical evidence for the logarithmic co rrection to the subnormal L(1/2) variance which was predicted by the d ynamic renormalization group calculations on the modified Edwards-Wilk inson equation. In the biased case the simulations are in close quanti tative agreement with the predictions of the collective variable appro ximation (CVA), which gives the same L(2/3) behaviour of the variance as the KPZ equation.