title: Sub-block order parameter in a driven Ising lattice gas using block distribution functions.
abstract: We investigate the order parameter of the standard Ising lattice gas and driven Ising lattice gas models. The sub-block order parameter is introduced to these conserved models as an order parameter using block distribution functions. We also introduce the sub-block order parameter of damage using the block distribution functions of damage. We measure the sub-block order parameters using the Metropolis and heat-bath rates. These order parameters work well for the non-equilibrium-conserved model as well as the equilibrium-conserved model. We obtain the critical exponent of order parameter beta=1/8 for the standard Ising lattice gas and beta=1/2 for a driven Ising lattice gas using the Metropolis and heat-bath rates.
authors.affiliation: Department of Physics, Korea University, Seoul 131-701, Korea.
authors.forename: Wooseop
authors.initials: W
authors.lastname: Kwak
authors.forename: Jae-Suk
authors.initials: JS
authors.lastname: Yang
authors.forename: In-Mook
authors.initials: IM
authors.lastname: Kim
authors.forename: D P
authors.initials: DP
authors.lastname: Landau