TY  - JOUR
AU  - Popkov, V.
AU  - Hager, J.
AU  - Krug, J.
AU  - Schütz, G. M.
TI  - Minimal current phase and boundary layers in driven diffusive systems
JO  - Physical review / E
VL  - 63
IS  - 5
SN  - 1063-651X
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-46831
SP  - 056110
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000168730800019
DO  - DOI:10.1103/PhysRevE.63.056110
UR  - https://juser.fz-juelich.de/record/46831
ER  -