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Phys Rev E Stat Nonlin Soft Matter Phys

Title:		Cluster formation and anomalous fundamental diagram in an ant-trail model
Author(s):		Nishinari K; Chowdhury D; Schadschneider A;
Address:		"Institut fur Theoretische Physik, Universitat zu Koln, Germany. knishi@rins.ryukoku.ac.jp"
Journal Title:		Phys Rev E Stat Nonlin Soft Matter Phys
Year:		2003
Volume:		20030328
Issue:		3 Pt 2
Page Number:		36120 -
DOI:		10.1103/PhysRevE.67.036120
ISSN/ISBN:		1539-3755 (Print) 1539-3755 (Linking)
Abstract:		"A recently proposed stochastic cellular automaton model [J. Phys. A 35, L573 (2002)], motivated by the motions of ants in a trail, is investigated in detail in this paper. The flux of ants in this model is sensitive to the probability of evaporation of pheromone, and the average speed of the ants varies nonmonotonically with their density. This remarkable property is analyzed here using phenomenological and microscopic approximations thereby elucidating the nature of the spatiotemporal organization of the ants. We find that the observations can be understood by the formation of loose clusters, i.e., space regions of enhanced, but not maximal, density"
Keywords:
Notes:		"PubMed-not-MEDLINENishinari, Katsuhiro Chowdhury, Debashish Schadschneider, Andreas eng 2003/04/12 Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Mar; 67(3 Pt 2):036120. doi: 10.1103/PhysRevE.67.036120. Epub 2003 Mar 28"