Fluctuation-induced collective motion: A single-particle density analysis

Physics – Condensed Matter – Soft Condensed Matter

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

To appear in Physical Review E.

Scientific paper

10.1103/PhysRevE.81.031125

In a system of noisy self-propelled particles with interactions that favor directional alignment, collective motion will appear if the density of particles increases beyond a certain threshold. In this paper, we argue that such a threshold may depend also on the profiles of the perturbation in the particle directions. Specifically, we perform mean-field, linear stability, perturbative and numerical analyses on an approximated form of the Fokker-Planck equation describing the system. We find that if an angular perturbation to an initially homogeneous system is large in magnitude and highly localized in space, it will be amplified and thus serves as an indication of the onset of collective motion. Our results also demonstrate that high particle speed promotes collective motion.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Fluctuation-induced collective motion: A single-particle density analysis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fluctuation-induced collective motion: A single-particle density analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuation-induced collective motion: A single-particle density analysis will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-357675

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.