Collective behavior of quorum-sensing run-and-tumble particles in confinement

Autor: Rein, Markus, Heinß, Nike, Schmid, Friederike, Speck, Thomas
Rok vydání: 2016
Předmět:
Zdroj: Phys. Rev. Lett. 116, 058102 (2016)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.116.058102
Popis: We study a generic model for quorum-sensing bacteria in circular confinement. Every bacterium produces signaling molecules, the local concentration of which triggers a response when a certain threshold is reached. If this response lowers the motility then an aggregation of bacteria occurs, which differs fundamentally from standard motility-induced phase separation due to the long-ranged nature of the concentration of signal molecules. We analyze this phenomenon analytically and by numerical simulations employing two different protocols leading to stationary cluster and ring morphologies, respectively.
Comment: to appear in Phys. Rev. Lett
Databáze: arXiv