title: Theoretical analysis and simulation for a facilitated asymmetric exclusion process.
abstract: Driven diffusive systems are important models in nonequilibrium state statistical mechanics. This paper studies an asymmetric exclusion process model with nearest rear neighbor interactions associated with energy. The exact flux expression of the model is obtained by a cluster mean-field method. Based on the flux expression, the properties of the fundamental diagram have been investigated in detail. To probe the energy's influence on the coarsening process of the system, Monte Carlo simulations are carried out to acquire the monotonic phase boundary in energy-density space. Above the phase boundary, the system is inhomogeneous and the normalized residence distribution p(s) is nonmonotonically decreasing. Under the phase boundary, the system is homogeneous and p(s) is monotonically decreasing. Further study comparatively shows that the system has turned into a microscopic inhomogeneous state from a homogeneous state before the system current arrives at maximum, if nearest rear neighbor interactions are strong. Our findings offer insights to deeply understand the dynamic features of nonequilibrium state systems.
authors.affiliation: School of Mathematics and Computational Science, Anqing Normal University, Anqing 246133, China.
authors.forename: Qing-Yi
authors.initials: QY
authors.lastname: Hao
authors.affiliation: School of Mathematics and Computational Science, Anqing Normal University, Anqing 246133, China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: Chen
authors.affiliation: College of Physics and Electronic Engineering, Guangxi Teachers Education University, Nanning 530023, China.
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Sun
authors.affiliation: School of Mathematics and Computational Science, Anqing Normal University, Anqing 246133, China.|School of Management, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Bing-Bing
authors.initials: BB
authors.lastname: Liu
authors.affiliation: School of Mathematics and Computational Science, Anqing Normal University, Anqing 246133, China.|School of Engineering Science, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Chao-Yun
authors.initials: CY
authors.lastname: Wu