论文标题
熵生产波动编码主动物质中的集体行为
Entropy production fluctuations encode collective behavior in active matter
论文作者
论文摘要
我们在相互作用的活性物质系统中的熵生产分布中得出了一般的下限。界面间相关性小且短距离的极限是紧密的，我们在四个规范的活动物质模型中探索了这一数字。在所研究的所有模型中，结合较弱，在集体波动导致长期相关性的情况下，随后将相变的位置与增强的熵产生波动联系起来。我们开发了一种理论，用于发作增强的波动，并将其与活性布朗颗粒中的特定相变相关。我们还获得了最佳控制力，以实现调整耗散和操纵系统之间系统所需的动力学。这样一来，我们发现了活跃物质中的熵产生与模式形成之间的一般关系，以及控制它的方式。
We derive a general lower bound on distributions of entropy production in interacting active matter systems. The bound is tight in the limit that interparticle correlations are small and short-ranged, which we explore in four canonical active matter models. In all models studied, the bound is weak where collective fluctuations result in long-ranged correlations, which subsequently links the locations of phase transitions to enhanced entropy production fluctuations. We develop a theory for the onset of enhanced fluctuations and relate it to specific phase transitions in active Brownian particles. We also derive optimal control forces that realize the dynamics necessary to tune dissipation and manipulate the system between phases. In so doing, we uncover a general relationship between entropy production and pattern formation in active matter, as well as ways of controlling it.
