2002/01/14 by Debashish Chowdhury, Chowdhury, Debashish, Vishwesha Guttal +5
Physics and Astronomy · #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0201207
IOP style LATEX, 4 embedded EPS figures, Final published version. Journal Ref: J. Phys.A 35, L573 (2002)
arxiv created 2003/01/29 · arxiv updated 2009/11/30
Generically, in models of driven interacting particles the average speed of the particles decreases monotonically with increasing density. We propose a counter-example, motivated by the motion of ants in a trail, where the average speed of the particles varies \it non-monotonically with their density because of the coupling of their dynamics with another dynamical variable. These results, in principle, can be tested experimentally.