论文标题

稳态加热发动机的发电效率 - 触发器权衡:相互作用的作用

Power-efficiency-fluctuations trade-off in steady-state heat engines: The role of interactions

论文作者

Benenti, Giuliano, Casati, Giulio, Wang, Jiao

论文摘要

我们考虑质量因子Q,该因子Q量化了由动态系统建模的稳态热发动机的功率,效率和波动之间的权衡。我们表明,在经典和量子力学上的非线性散射理论在接近carnot效率时设置了界限Q = 3/8。另一方面,相互作用,不可整合和动量支持系统可以实现Q = 1/2的值,这是线性响应中的通用上限。该结果表明,相互作用对于实现稳态加热发动机的最佳性能是必要的。

We consider the quality factor Q, which quantifies the trade-off between power, efficiency, and fluctuations in steady-state heat engines modeled by dynamical systems. We show that the nonlinear scattering theory, both in classical and quantum mechanics, sets the bound Q=3/8 when approaching the Carnot efficiency. On the other hand, interacting, nonintegrable and momentum-conserving systems can achieve the value Q=1/2, which is the universal upper bound in linear response. This result shows that interactions are necessary to achieve the optimal performance of a steady-state heat engine.

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