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arXiv 1809.02564quant-ph
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量子热机的协同增效

Cooperative efficiency boost for quantum heat engines

David Gelbwaser-Klimovsky, Wassilij Kopylov, Gernot Schaller

摘要:

与通常使用的绝热实现方式相比,多体热机的功率和效率可以通过执行协作非绝热操作来提高。在这里,关键属性依赖于这样一个事实,即需要非绝热性以允许合作效应,这可以使用仅存在于多体系统的集体非被动状态中的热力学资源。特别是,我们认为奥托循环的效率,这增加了使用的副本的数量,并达到多体绑定,我们分析讨论。

英文摘要:

The power and efficiency of many-body heat engines can be boosted by performing cooperative non-adiabatic operations in contrast to the commonly used adiabatic implementations. Here, the key property relies on the fact that non-adiabaticity is required in order to allow for cooperative effects, that can use the thermodynamic resources only present in the collective non-passive state of a many-body system. In particular, we consider the efficiency of an Otto cycle, which increases with the number of copies used and reaches a many-body bound, which we discuss analytically.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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