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arXiv 1504.06309cond-mat.stat-mech
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具有开放边界的时间相关零程过程:稳态和涨落

Temporally correlated zero-range process with open boundaries: Steady state and fluctuations

Massimo Cavallaro, Raúl J. Mondragón, Rosemary J. Harris

摘要:

我们研究了Hirschberg等人[Phys. Rev. Lett. 103,090602(2009)]。该模型包括时间相关性,可以促进粒子的凝聚,这是在现实世界动力学中观察到的情况。我们推导出一个网站系统的稳定状态的精确解,以及较大的一维晶格的平均场近似,并探讨粒子电流的大偏差特性。分析和数值计算表明,虽然粒子分布很好地描述了一个有效的马尔可夫解决方案,罕见的电流的概率与无记忆的情况下。特别是,我们发现的记忆诱导的动态相变的证据。

英文摘要:

We study an open-boundary version of the on-off zero-range process introduced in Hirschberg et al. [Phys. Rev. Lett. 103, 090602 (2009)]. This model includes temporal correlations which can promote the condensation of particles, a situation observed in real-world dynamics. We derive the exact solution for the steady state of the one-site system, as well as a mean-field approximation for larger one-dimensional lattices, and also explore the large-deviation properties of the particle current. Analytical and numerical calculations show that, although the particle distribution is well described by an effective Markovian solution, the probability of rare currents differs from the memoryless case. In particular, we find evidence for a memory-induced dynamical phase transition.

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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