Efficiency at maximum power of motor traffic on networks
Abstract
We study motor traffic on Bethe networks subject to hard-core exclusion for both tightly coupled one-state machines and loosely coupled two-state machines that perform work against a constant load. In both cases we find an interaction-induced enhancement of the efficiency at maximum power (EMP) as compared to non-interacting motors. The EMP enhancement occurs for a wide range of network and single motor parameters and is due to a change in the characteristic load-velocity relation caused by phase transitions in the system. Using a quantitative measure of the trade-off between the EMP enhancement and the corresponding loss in the maximum output power we identify parameter regimes where motor traffic systems operate efficiently at maximum power without a significant decrease in the maximum power output due to jamming effects.
Keywords
Cite
@article{arxiv.1402.0713,
title = {Efficiency at maximum power of motor traffic on networks},
author = {Natalia Golubeva and Alberto Imparato},
journal= {arXiv preprint arXiv:1402.0713},
year = {2015}
}
Comments
9 pages, 9 figures, submitted to Phys. Rev. E