短程相互作用随机输运中边界驱动诱导凝聚体的形成
Boundary drive induced formation of aggregate condensates in stochastic transport with short-range interactions
摘要：
我们讨论了通过开放边界的粒子交换和诱导驱动的相结构和凝聚现象的随机传输过程与可调的短程相互作用特点对因子分解稳态（PFSS）在封闭系统中的影响。在这个模型中，粒子跳跃过程的稳态可以被调节，以产生从零程过程（ZRP）凝聚模型到具有空间扩展凝聚的模型的性质。通过改变粒子交换速率以及全局漂移的存在，我们观察到从自由粒子气体到凝聚物聚集到边界的相的相变。虽然这种转变是类似于以前的结果的ZRP，我们发现，该机制是不同的边界的存在实际上影响的相互作用，由于非零的相互作用范围。
英文摘要：
We discuss the effects of particle exchange through open boundaries and the induced drive on the phase structure and condensation phenomena of a stochastic transport process with tunable short-range interactions featuring pair-factorized steady states (PFSS) in the closed system. In this model, the steady state of the particle hopping process can be tuned to yield properties from the zero-range process (ZRP) condensation model to those of models with spa- tially extended condensates. By varying the particle exchange rates as well as the presence of a global drift, we observe a phase transition from a free particle gas to a phase with condensates aggregated to the boundaries. While this transition is similar to previous results for the ZRP, we find that the mechanism is different as the presence of the boundary actually influences the interaction due to the non-zero interaction range.
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