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arXiv 1306.1775cond-mat.stat-mech
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边界驱动川崎过程的低温分析

A low temperature analysis of the boundary driven Kawasaki Process

Christian Maes, Winny O'Kelly de Galway

摘要:

非平衡系统的低温分析需要找到具有最长寿命的状态,并且最容易从其他状态到达。我们确定了这些主导状态的一维扩散格子气受排斥和最近邻相互作用。它们并不对应于最低能量的组态,即使粒子流在温度达到零时趋于零。这是因为设定有效时间尺度的动力学活动也会随着温度的变化而趋于零。其结果是一个非平凡的渐近相图,这在很大程度上取决于相互作用耦合和相对化学势的水库。

英文摘要:

Low temperature analysis of nonequilibrium systems requires finding the states with the longest lifetime and that are most accessible from other states. We determine these dominant states for a one-dimensional diffusive lattice gas subject to exclusion and with nearest neighbor interaction. They do not correspond to lowest energy configurations even though the particle current tends to zero as the temperature reaches zero. That is because the dynamical activity that sets the effective time scale, also goes to zero with temperature. The result is a non-trivial asymptotic phase diagram, which crucially depends on the interaction coupling and the relative chemical potentials of the reservoirs.

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