In this paper, which completes our earlier short publication [Phys. Rev. Lett. 84, 511 (2000)], we study dynamics of a hard-core tracer particle (TP) performing a biased random walk in an adsorbed monolayer, composed of mobile hard-core particles undergoing continuous exchanges with a vapor phase. In terms of an approximate approach, based on the decoupling of the third-order correlation functions, we obtain the density profiles of the monolayer particles around the TP and derive the force-velocity relation, determining the TP terminal velocity, V_{tr}, as the function of the magnitude of external bias and other system's parameters. Asymptotic forms of the monolayer particles density profiles at large separations from the TP, and behavior of V_{tr} in the limit of small external bias are found explicitly.
@article{arxiv.cond-mat/0004443,
title = {Force-velocity relation and density profiles for biased diffusion in an adsorbed monolayer},
author = {O. Benichou and A. M. Cazabat and J. De Coninck and M. Moreau and G. Oshanin},
journal= {arXiv preprint arXiv:cond-mat/0004443},
year = {2009}
}