Thermodynamic cycles with active matter.,Physical Review E

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Thermodynamic cycles with active matter.
Physical Review E ( IF 2.2 ) Pub Date : 2020-07-01 , DOI: 10.1103/physreve.102.010101
Timothy Ekeh ₁ , Michael E Cates ₁ , Étienne Fodor ₁

Affiliation

Active matter constantly dissipates energy to power the self-propulsion of its microscopic constituents. This opens the door to designing innovative cyclic engines without any equilibrium equivalent. We offer a consistent thermodynamic framework to characterize and optimize the performances of such cycles. Based on a minimal model, we put forward a protocol which extracts work by controlling only the properties of the confining walls at boundaries, and we rationalize the transitions between optimal cycles. We show that the corresponding power and efficiency are generally proportional, so that they reach their maximum values at the same cycle time in contrast with thermal cycles, and we provide a generic relation constraining the fluctuations of the power.

中文翻译：

具有活性物质的热力学循环。

活性物质不断耗散能量，以推动其微观成分的自我推进。这为设计创新的循环发动机打开了大门，而这种发动机没有任何平衡当量。我们提供了一致的热力学框架来表征和优化此类循环的性能。基于最小模型，我们提出了一种协议，该协议仅通过控制边界处的约束墙的属性来提取工作，并合理化最佳循环之间的过渡。我们表明相应的功率和效率通常成正比，因此与热循环相反，它们在相同的循环时间达到最大值，并且我们提供了一种约束功率波动的一般关系。

更新日期：2020-07-01

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