Real-world systems are characterized by complex interactions of their internal degrees of freedom, while living in ever-changing environments whose net effect is to act as additional couplings. Here, we introduce a paradigmatic interacting model in a switching, but unobserved, environment. We show that the limiting properties of the mutual information of the system allow for a disentangling of these two sources of couplings. Further, our approach might stand as a general method to discriminate complex internal interactions from equally complex changing environments.

中文翻译：

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互信息将交互与不断变化的环境分开

现实世界系统的特点是其内部自由度的复杂相互作用，同时生活在不断变化的环境中，其净效应是作为额外的耦合。在这里，我们在切换但未观察到的环境中引入了一个范式交互模型。我们表明，系统互信息的限制特性允许解开这两种耦合源。此外，我们的方法可能是从同样复杂的变化环境中区分复杂内部交互的通用方法。