Volume 86, Number 4, May 2009
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||03 June 2009|
Self-organized pattern formation in a diverse attractive-repulsive swarm
National Institute of Physics University of the Philippines - Diliman, Quezon City 1101, Philippines
Corresponding author: firstname.lastname@example.org
Accepted: 30 April 2009
A diverse, asynchronous swarm consisting of N mobile, attractive-repulsive particles evolves inside a two-dimensional confinement. Each particle k is characterized by a preferred neighboring distance determined from a truncated normal distribution of mean and standard deviation , for . Pairwise particle interaction is either attractive or repulsive depending on whether the distance between two particles is greater or less than . The swarm forms self-organized metastable patterns as particles adjust their positions via random asynchronous evolution. An order parameter U is defined as a measure for pattern metastability, which is found to exhibit a first-order phase transition at = 0.606. For tetrapolar patterns are formed, whereas for stellate patterns are formed. This work explores the role of diversity in self-organized pattern formation in an attractive-repulsive swarm system.
PACS: 87.23.Cc – Population dynamics and ecological pattern formation / 05.65.+b – Self-organized systems / 87.18.Hf – Spatiotemporal pattern formation in cellular populations
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.