TY  - JOUR
PY  - 2009//
TI  - Traffic-like collective movement of ants on trails: absence of a jammed phase
JO  - Physical review letters
A1  - John, A.
A1  - Schadschneider, Andreas
A1  - Chowdhury, Debashish
A1  - Nishinari, Katsuhiro
SP  - 108001
EP  - 108001
VL  - 102
IS  - 10
N2  - We report experimental results on unidirectional trafficlike collective movement of ants on trails. Our work is primarily motivated by fundamental questions on the collective spatiotemporal organization in systems of interacting motile constituents driven far from equilibrium. Making use of the analogies with vehicular traffic, we analyze our experimental data for the spatiotemporal organization of ants on a trail. From this analysis, we extract the flow-density relation as well as the distributions of velocities of the ants and distance headways. Some of our observations are consistent with our earlier models of ant traffic, which are appropriate extensions of the asymmetric simple exclusion process. In sharp contrast to highway traffic and most other transport processes, the average velocity of the ants is almost independent of their density on the trail. Consequently, no jammed phase is observed.<p />  <p>Language: en</p>
LA  - en
SN  - 0031-9007
UR  - http://dx.doi.org/
ID  - ref1
ER  -