论文标题

相关增强的量子发动机:原理证明

Correlation-boosted quantum engine: A proof-of-principle demonstration

论文作者

Herrera, Marcela, Reina, John H., D'Amico, Irene, Serra, Roberto M.

论文摘要

我们采用当前可用的量子技术,设计并实施了非经典相关的交换加热引擎,该引擎允许在标准Carnot限制上实现效率。这种发动机还可以在不在工作物质中没有初始量子相关性的情况下,在更宽的参数窗口中增加了可提取的工作量。增强效率是由于熵产生与整个热力学周期中量子相关性消耗之间的权衡。我们通过有效地在云量子处理器上定制热发动机来得出相关周期的广义二级限制,并实现发动机效率提高的原则证明。

Employing currently available quantum technology, we design and implement a non-classically correlated SWAP heat engine that allows to achieve an efficiency above the standard Carnot limit. Such an engine also boosts the amount of extractable work, in a wider parameter window, with respect to engine's cycle in the absence of initial quantum correlations in the working substance. The boosted efficiency arises from a trade-off between the entropy production and the consumption of quantum correlations during the full thermodynamic cycle. We derive a generalized second-law limit for the correlated cycle and implement a proof-of-principle demonstration of the engine efficiency enhancement by effectively tailoring the thermal engine on a cloud quantum processor.

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