期刊
EUROPEAN PHYSICAL JOURNAL E
卷 32, 期 2, 页码 191-208出版社
SPRINGER
DOI: 10.1140/epje/i2010-10603-6
关键词
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资金
- German Science Foundation [DFG GK 1276/1, DFG GZ SA864/3-1]
We introduce a model for active transport on inhomogeneous networks embedded in a diffusive environment which is motivated by vesicular transport on actin filaments. In the presence of a hard-core interaction, particle clusters are observed that exhibit an algebraically decaying distribution in a large parameter regime, indicating the existence of clusters on all scales. The scale-free behavior can be understood by a mechanism promoting preferential attachment of particles to large clusters. The results are compared with a diffusion-limited aggregation model and active transport on a regular network. For both models we observe aggregation of particles to clusters which are characterized by a finite size scale if the relevant time scales and particle densities are considered.
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