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arXiv 1502.04730cond-mat.stat-mech
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具有约束跳跃率的粒子系统中的定常流

Stationary currents in particle systems with constrained hopping rates

Emilio N. M. Cirillo, Matteo Colangeli, Adrian Muntean

摘要:

研究了随机粒子系统中影响跳跃率的约束对定常流的影响。在有限体积内漂移的零程过程的框架中,我们讨论了如何通过约束的存在来减少电流,并推导出精确的公式,在某些情况下是完全明确的。这里讨论的模型已经在参考文献[1]中介绍,并且与细长黑暗走廊中的行人运动的描述相关,其中对跳跃率的约束可以与行人之间的交互距离的限制有关。

英文摘要:

We study the effect on the stationary currents of constraints affecting the hopping rates in stochastic particle systems. In the framework of Zero Range Processes with drift within a finite volume, we discuss how the current is reduced by the presence of the constraint and deduce exact formulae, fully explicit in some cases. The model discussed here has been introduced in Ref. [1] and is relevant for the description of pedestrian motion in elongated dark corridors, where the constraint on the hopping rates can be related to limitations on the interaction distance among pedestrians.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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