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A cellular-automata model of flow in ant trails: non-monotonic variation of speed with density

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Published 1 October 2002 Published under licence by IOP Publishing Ltd
, , Citation Debashish Chowdhury et al 2002 J. Phys. A: Math. Gen. 35 L573 DOI 10.1088/0305-4470/35/41/103

0305-4470/35/41/L573

Abstract

Generically, in models of driven interacting particles, the average speed of the particles decreases monotonically with increasing density. We propose a counterexample, motivated by the motion of ants in a trail, where the average speed of the particles varies non-monotonically with their density because of the coupling of their dynamics with another dynamical variable. These results, in principle, can be tested experimentally.

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10.1088/0305-4470/35/41/103