article · 31/12/2014
Microscopic Theory for Negative Differential Mobility in Crowded Environments
Résumé
We study the behavior of the stationary velocity of a driven particle in an environment of mobile hardcore obstacles. Based on a lattice gas model, we demonstrate analytically that the drift velocity can exhibit a nonmonotonic dependence on the applied force, and show quantitatively that such negative differential mobility (NDM), observed in various physical contexts, is controlled by both the density and diffusion time scale of the obstacles. Our study unifies recent numerical and analytical results obtained in specific regimes, and makes it possible to determine analytically the region of the full parameter space where NDM occurs. These results suggest that NDM could be a generic feature of biased (or active) transport in crowded environments.
Citer cet article
Benichou, O., Illien, P., Oshanin, G., Sarracino, A., & Voituriez, R. (2014). Microscopic Theory for Negative Differential Mobility in Crowded Environments. PHYSICAL REVIEW LETTERS, 113(26). https://doi.org/10.1103/PhysRevLett.113.268002@article{Benichou2014_211,
author = {Benichou, O. and Illien, P. and Oshanin, G. and Sarracino, A. and Voituriez, R.},
year = {2014},
month = {12},
title = {Microscopic Theory for Negative Differential Mobility in Crowded Environments},
journal = {PHYSICAL REVIEW LETTERS},
volume = {113},
number = {26},
abstract = {We study the behavior of the stationary velocity of a driven particle in an environment of mobile hardcore obstacles. Based on a lattice gas model, we demonstrate analytically that the drift velocity can exhibit a nonmonotonic dependence on the applied force, and show quantitatively that such negative differential mobility (NDM), observed in various physical contexts, is controlled by both the density and diffusion time scale of the obstacles. Our study unifies recent numerical and analytical results obtained in specific regimes, and makes it possible to determine analytically the region of the full parameter space where NDM occurs. These results suggest that NDM could be a generic feature of biased (or active) transport in crowded environments.},
url = {http://www.dx.doi.org/10.1103/PhysRevLett.113.268002},
doi = {10.1103/PhysRevLett.113.268002},
issn = {0031-9007},
}TY - JOUR
AU - Benichou, O.
AU - Illien, P.
AU - Oshanin, G.
AU - Sarracino, A.
AU - Voituriez, R.
PY - 2014
DA - 2014/12/31
TI - Microscopic Theory for Negative Differential Mobility in Crowded Environments
JO - PHYSICAL REVIEW LETTERS
VL - 113
IS - 26
SN - 0031-9007
AB - We study the behavior of the stationary velocity of a driven particle in an environment of mobile hardcore obstacles. Based on a lattice gas model, we demonstrate analytically that the drift velocity can exhibit a nonmonotonic dependence on the applied force, and show quantitatively that such negative differential mobility (NDM), observed in various physical contexts, is controlled by both the density and diffusion time scale of the obstacles. Our study unifies recent numerical and analytical results obtained in specific regimes, and makes it possible to determine analytically the region of the full parameter space where NDM occurs. These results suggest that NDM could be a generic feature of biased (or active) transport in crowded environments.
DO - 10.1103/PhysRevLett.113.268002
UR - http://www.dx.doi.org/10.1103/PhysRevLett.113.268002
ER -