Far-from-equilibrium transport with constrained resources
Far-from-equilibrium transport with constrained resources
复制标题
DOI：
10.1088/1742-5468/2008/06/p06009
复制
发表时间：
2008-06-01
影响因子：
2.4
通讯作者：
Zia, R. K. P.
中科院分区：
文献类型：
--
作者：
Adams, D. A.;Schmittmann, B.;Zia, R. K. P.
完全不对称简单排斥过程（TASEP）是远离平衡态动力学研究的一个很好的例子。在这里，我们考虑一个TASEP与开放的边界，但施加一个全局约束的粒子总数。换句话说，边界水库和系统必须共享有限的颗粒供应。使用模拟和分析参数，我们得到的平均粒子密度和系统的电流，作为边界速率和粒子总数的函数。我们的研究结果是相关的生物运输问题，如果分子马达的可用性成为一个限速因素。
The totally asymmetric simple exclusion process ( TASEP) is a well studied example of far-from-equilibrium dynamics. Here, we consider a TASEP with open boundaries but impose a global constraint on the total number of particles. In other words, the boundary reservoirs and the system must share a finite supply of particles. Using simulations and analytic arguments, we obtain the average particle density and current of the system, as a function of the boundary rates and the total number of particles. Our findings are relevant to biological transport problems if the availability of molecular motors becomes a rate-limiting factor.