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Journal Article

Trail-mediated self-interaction

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Golestanian,  Ramin
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Kranz, W. T., & Golestanian, R. (2019). Trail-mediated self-interaction. The Journal of Chemical Physics, 150(21): 214111. doi:10.1063/1.5081122.


Cite as: https://hdl.handle.net/21.11116/0000-0003-D3E6-B
Abstract
A number of microorganisms leave persistent trails while moving along surfaces. For single-cell organisms, the trail-mediated self-interaction will influence the dynamics. It has been discussed recently [Kranz et al., Phys. Rev. Lett. 117, 038101 (2016)] that the self-interaction may localize the organism above a critical coupling (c) to the trail. Here, we will derive a generalized active particle model capturing the key features of the self-interaction and analyze its behavior for smaller couplings < (c). We find that fluctuations in propulsion speed shift the localization transition to stronger couplings.