Velocity condensation for magnetotactic bacteria

Autor:	Rupprecht, Jean-Francois, Waisbord, Nicolas, Ybert, Christophe, Cottin-Bizonne, Cécile, Bocquet, Lydéric
Rok vydání:	2015
Předmět:	Physics - Biological Physics Condensed Matter - Soft Condensed Matter Condensed Matter - Statistical Mechanics Physics - Data Analysis Statistics and Probability
Zdroj:	Phys. Rev. Lett. 116, 168101 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.116.168101
Popis:	Magnetotactic swimmers tend to align along magnetic field lines against stochastic reorientations. We show that the swimming strategy, e.g. active Brownian motion versus run-and-tumble dynamics, strongly affects the orientation statistics. The latter can exhibit a velocity condensation whereby the alignment probability density diverges. As a consequence, we find that the swimming strategy affects the nature of the phase transition to collective motion, indicating that L\'evy run-and-tumble walks can outperform active Brownian processes as strategies to trigger collective behavior. Comment: 5 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1511.03790 Zobrazit plný text záznamu View this record from Arxiv