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Berlin 2015 – scientific programme

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BP: Fachverband Biologische Physik

BP 55: Networks: From Topology to Dynamics II (joint DY/BP/SOE)

BP 55.9: Talk

Friday, March 20, 2015, 11:45–12:00, BH-N 128

Exclusion processes on networks — •Izaak Neri1,2, Norbert Kern3, and Andrea Parmeggiani31Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38 01187 Dresden Germany — 2Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstr. 108 01307 Dresden — 3Laboratoire Charles Coulomb UMR 5221 & CNRS, Universite Montpellier 2, F-34095, Montpellier, France

We present a study of exclusion processes on complex networks, as a paradigmatic model for transport subject to excluded volume interactions. Building on the phenomenology of a single segment and borrowing ideas from random networks we investigate the effect of connectivity on transport. In particular, we argue that the presence of disorder in the network crucially modifies the large scale transport features: disorder induces strong density heterogeneities in the network such that certain regions of the network are almost fully congested while other regions allow for free flow of matter.

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