title: Multifractal current distribution in random-diode networks.
abstract: Recently it has been shown analytically that electric currents in a random-diode network are distributed in a multifractal manner [O. Stenull and H. K. Janssen, Europhys. Lett. 55, 691 (2001)]. In the present paper we investigate the multifractal properties of a random diode network at the critical point by numerical simulations. We analyze the currents running on a directed percolation cluster and confirm the field-theoretic predictions for the scaling behavior of moments of the current distribution. It is pointed out that a random diode network is a particularly good candidate for a possible experimental realization of directed percolation.
authors: Theoretische Physik, Fachbereich 8, Universität GH Wuppertal, 42097 Wuppertal, Germany.
authors: Haye
authors: H
authors: Hinrichsen
authors: Olaf
authors: O
authors: Stenull
authors: Hans-Karl
authors: HK
authors: Janssen