%0 Journal Article
%A Popkov, V.
%A Hager, J.
%A Krug, J.
%A Schütz, G. M.
%T Minimal current phase and boundary layers in driven diffusive systems
%J Physical review / E
%V 63
%N 5
%@ 1063-651X
%C College Park, Md.
%I APS
%M PreJuSER-46831
%P 056110
%D 2001
%Z Record converted from VDB: 12.11.2012
%X We investigate boundary-driven phase transitions in open driven diffusive systems. The generic phase diagram for systems with short-ranged interactions is governed by a simple extremal principle for the macroscopic current, which results from an interplay of density fluctuations with the motion of shocks. In systems with more than one extremum in the current-density relation, one finds a minimal current phase even though the boundaries support a higher current. The boundary layers of the critical minimal current and maximal current phases are argued to be of a universal form. The predictions of the theory are confirmed by Monte Carlo simulations of the two-parameter family of stochastic particle hopping models of Katz, Lebowitz, and Spohn and by analytical results for a related cellular automaton with deterministic bulk dynamics. The effect of disorder in the particle jump rates on the boundary layer profile is also discussed.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000168730800019
%R 10.1103/PhysRevE.63.056110
%U https://juser.fz-juelich.de/record/46831