We recently argued that a self-propelled particle is formally equivalent to a system consisting of two subsystems coupled by a non-reciprocal interaction [Phys. Rev. E 100, 050603(R) (2019)]. Here we show that this non-reciprocal coupling allows to extract useful work from a single self-propelled particle maintained at constant temperature, by using an aligning interaction to control correlations between the particle’s position and self-propulsion.

中文翻译：

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单个主动粒子引擎，利用粒子位置与自推进之间的不可逆耦合

我们最近认为，自推粒子在形式上等同于由两个子系统组成的系统，两个子系统通过不可逆的相互作用耦合在一起。修订版E 100，050603（R）（2019）]。在这里，我们表明，这种不可逆的耦合允许通过使用对齐相互作用控制粒子位置与自推进之间的相关性，从保持在恒定温度的单个自推进粒子中提取有用的功。