具有边界储层的无序驱动晶格气体和Langmuir动力学
Disordered driven lattice gases with boundary reservoirs and Langmuir kinetics
摘要:
不对称的简单排斥过程与额外的朗缪尔动力学,即附着和脱离的散装,是一个典型的细胞内运输模型。在这里,我们研究这个模型中存在随机分布的不均匀性(“缺陷”)。使用蒙特卡罗模拟,我们发现了大量共存的高密度和低密度域。结果是通用的一维驱动扩散系统与短程相互作用,可以理解的局部极值原理的电流配置文件。这一原则是用来确定电流分布和相图以及统计性质的合奏缺陷样品。
英文摘要:
The asymmetric simple exclusion process with additional Langmuir kinetics, i.e. attachment and detachment in the bulk, is a paradigmatic model for intracellular transport. Here we study this model in the presence of randomly distributed inhomogeneities ('defects'). Using Monte Carlo simulations, we find a multitude of coexisting high- and low-density domains. The results are generic for one-dimensional driven diffusive systems with short-range interactions and can be understood in terms of a local extremal principle for the current profile. This principle is used to determine current profiles and phase diagrams as well as statistical properties of ensembles of defect samples.
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