Symmetry breaking and phase coexistence in a driven diffusive two-channel system
Abstract
We consider classical hard-core particles moving on two parallel chains in the same direction. An interaction between the channels is included via the hopping rates. For a ring, the stationary state has a product form. For the case of coupling to two reservoirs, it is investigated analytically and numerically. In addition to the known one-channel phases, two new regions are found, in particular the one, where the total density is fixed, but the filling of the individual chains changes back and forth, with a preference for strongly different densities. The corresponding probability distribution is determined and shown to have an universal form. The phase diagram and general aspects of the problem are discussed.
Cite
@article{arxiv.cond-mat/0106216,
title = {Symmetry breaking and phase coexistence in a driven diffusive two-channel system},
author = {Vladislav Popkov and Ingo Peschel},
journal= {arXiv preprint arXiv:cond-mat/0106216},
year = {2011}
}
Comments
12 pages, 10 figures, to appear in Phys.Rev.E