THEORY OF SELF-ORGANIZED INTERFACE DEPINNING

We present a theoretical analysis of a recently introduced interface g rowth model with a global search of optimal growth sites, realized by quenched random forces. The interest in this model lies in the fact th at it yields a variety of long-ranged correlated phenomena, which are characterized by scaling exponents that differ from the Kardar-Parisi- Zhang universality class [Phys. Rev. Lett. 56, 889 (1986)], in closer correspondence with experimental observations. It is shown that all th e phenomenological findings can be, recovered from the theory, and all the exponents found can be computed from the knowledge of one exponen t of the directed percolation problem.