Asymmetric exclusion processes on m-input n-output junctions with parallel update

Mingzhe Liu and Ruili Wang

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 19, 4068-4074

Abstract: In this paper, we investigate totally asymmetric exclusion processes (TASEPs) on lattices with an m-input n-output junction in parallel update. A general theoretical solution for traffic dynamics of TASEPs with a junction is developed. More interestingly, m-input n-output junctions can be classified by a parameter, λ=m/n. The junctions with the same λ exhibit the same dynamic properties (e.g., phase diagrams, stationary currents, and density profiles). When the number of m and/or n changes, the low-density and high-density regions can be measured qualitatively and quantitatively. The phase diagram is obtained from a simple mean-field approximation and supported by computer simulations. Stationary current and density profiles are calculated which show good agreement with computer simulations.

Keywords: TASEP; Junctions; Parallel update; Multiple inputs and outputs (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:19:p:4068-4074

DOI: 10.1016/j.physa.2009.05.048

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