Is coherence catalytic?
Is coherence catalytic?
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DOI：
10.1088/1751-8121/aac112
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发表时间：
2018-04
期刊：
影响因子：
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通讯作者：
J. Vaccaro;S. Croke;S. Barnett
中科院分区：
文献类型：
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作者：
J. Vaccaro;S. Croke;S. Barnett
量子相干，控制叠加态相的能力是一种资源，因此，了解它在使用中是如何消耗的是至关重要的。有人提出，催化相干是可能的，即重复使用相干而不会降低或降低性能。这一说法与量子热力学特别相关，因为如果它是真的，它将允许锁定在相干中的自由能被无限地提取出来。我们通过对Åberg （2014 Phys）提案的仔细分析直接解决了这个问题。Rev. Lett. 113 150402)。我们发现，连贯性不能催化地使用，甚至不能无限制地重复使用。
Quantum coherence, the ability to control the phases in superposition states is a resource, and it is of crucial importance, therefore, to understand how it is consumed in use. It has been suggested that catalytic coherence is possible, that is repeated use of the coherence without degradation or reduction in performance. The claim has particular relevance for quantum thermodynamics because, were it true, it would allow free energy that is locked in coherence to be extracted indefinitely. We address this issue directly with a careful analysis of the proposal by Åberg (2014 Phys. Rev. Lett. 113 150402). We find that coherence cannot be used catalytically, or even repeatedly without limit.