论文标题
动态相变中的三临界行为
Tricritical behavior in dynamical phase transitions
论文作者
论文摘要
我们确定了与宏观波动理论所描述的扩散系统中发生的与时间集成的可观察物相关的动力相变的新方案。它的特征是在两个三个智力点处的一阶偏置诱导的相变曲线的成对会议。我们为其外观制定了一个简单的一般标准，并为三个政治行为提供了精确的兰道理论。在三个示例中证明了这种情况：简单的对称排除过程偏向于活动相关的结构可观察的； Katz-Lebowitz-Spohn晶格气模型偏向于其电流。并在其熵产生偏见的活跃晶格中。
We identify a new scenario for dynamical phase transitions associated with time-integrated observables occurring in diffusive systems described by the macroscopic fluctuation theory. It is characterized by the pairwise meeting of first- and second-order bias-induced phase transition curves at two tricritical points. We formulate a simple, general criterion for its appearance and derive an exact Landau theory for the tricritical behavior. The scenario is demonstrated in three examples: the simple symmetric exclusion process biased by an activity-related structural observable; the Katz-Lebowitz-Spohn lattice gas model biased by its current; and in an active lattice gas biased by its entropy production.
