Lettre à l'éditeur
Résumé : We model reaction-diffusion systems with reactive lattice gas automata, which possess intrinsic microscopic fluctuations. We show that, within the limits of linear theory, the commonly accepted Landau equation describes correctly the measured effects of the fluctuations, as evidenced by the density autocorrelation function. We suggest that the reactive lattice gas automata constitute a powerful method for investigating reaction-diffusion systems where intrinsic fluctuations play an important role. © 1992 IOP Publishing Ltd.