Abstract
The cytoskeleton is an important subsystem of cells that is involved for example in cell division and locomotion. It consists of filaments that are cross-linked by molecular motors that can induce relative sliding between filaments and generate stresses in the network. In order to study the effects of fluctuations on the dynamics of such a system we introduce here a new class of driven diffusive systems mimicking the dynamics of active filament bundles where the filaments are aligned with respect to a common axis. After introducing the model class we first analyze an exactly solvable case and find condensation. For the general case we perform a mean-field analysis and study the behavior on large length scales by coarse-graining. We determine conditions for condensation and establish a relation between the hopping rates and the tension generated in the bundle.
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Mohanty, P.K., Kruse, K. Driven Diffusive Systems of Active Filament Bundles. J Stat Phys 128, 95–110 (2007). https://doi.org/10.1007/s10955-006-9125-8
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DOI: https://doi.org/10.1007/s10955-006-9125-8