SELF-ORGANIZED CRITICAL-DYNAMICS OF A DIRECTED BOND PERCOLATION MODEL

We study roughening interfaces with a constant slope that become self- organized critical by a rule that is similar to that of invasion perco lation. The transient and critical dynamical exponents show Galilean i nvariance. The activity along the interface exhibits non-trivial power law correlations in both space and time. The probability distribution of the activity pattern follows an algebraic relation. (C) 1998 Publi shed by Elsevier Science B.V.