Time-periodic behaviour in one- and two-dimensional interacting particle systems

Abstract

We provide a class of examples of interacting particle systems on ${\mathbb{Z}}^d$, for $d\in \{1,2\}$, that admit a unique translation-invariant stationary measure, which is not the long-time limit of all translation-invariant starting measures, due to the existence of time-periodic orbits in the associated measure-valued dynamics. This is the first such example and shows that even in low dimensions, not every limit point of the measure-valued dynamics needs to be a time-stationary measure.

31 pages. For a short video summary, see https://youtu.be/fl9scg_INKI ; final version

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