Emergence of dynamic phases in the presence of different kinds of open boundaries in stochastic transport with short-range interactions

Emergence of dynamic phases in the presence of different kinds of open boundaries in stochastic transport with short-range interactions
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短程相互作用的随机输运中存在不同种类的开放边界时动态相的出现

DOI:
10.1088/1742-5468/2016/01/013207
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发表时间:
2016
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
--
通讯作者:
W. Janke
W. Janke
中科院分区:
--
文献类型:
--
作者:
H. Nagel;W. Janke

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我们讨论了开放边界条件和边界诱导漂移对双因式分解稳态输运过程中凝聚现象的影响,这是一个具有可调近邻相互作用的通用随机输运模型。改变边界实现的具体类型以及粒子漂移的存在,我们观察到与具有开放边界条件的更简单的零程过程的相图相似但更丰富的相图。将我们的模型调整为类似零程过程的性质,我们能够研究从零程相互作用到短程相互作用的过渡区中的边界诱导效应。我们讨论了新出现的相结构,其中空间扩展的凝聚体既可以在边界上观察到,也可以在主体系统中观察到,并将其与具有周期性边界的情况进行比较,在周期边界的情况下,动力学导致在主体中形成单一的凝聚体。
We discuss the effects of open boundary conditions and boundary induced drift on condensation phenomena in the pair-factorized steady states transport process, a versatile model for stochastic transport with tunable nearest–neighbour interactions. Varying the specific type of the boundary implementation as well as the presence of a particle drift, we observe phase diagrams that are similar but richer compared to those of the simpler zero-range process with open boundary conditions. Tuning our model towards zero-range-process-like properties we are able to study boundary induced effects in the transition regime from zero-range interactions to short-range interactions. We discuss the emerging phase structure where spatially extended condensates can be observed at the boundaries as well as in the bulk system and compare it to the situation with periodic boundaries, where the dynamics leads to the formation of a single condensate in the bulk.
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