  We present a study of a phase-separation process induced by the presence of
spatially-correlated multiplicative noise. We develop a mean-field approach
suitable for conserved-order-parameter systems and use it to obtain the phase
diagram of the model. Mean-field results are compared with numerical
simulations of the complete model in two dimensions. Additionally, a comparison
between the noise-driven dynamics of conserved and nonconserved systems is made
at the level of the mean-field approximation.
